Arnold: Are you interested in going to see a movie this weekend? Rebecca: I would like to, but unfortunately, I

a fun and busy weekend for you, Rebecca! It"s great that your father is returning from Australia after such a long time. I understand why you don"t have any free time this weekend due to the celebration. Let"s break down the conversation and understand the key points.

Arnold: Тебе интересно сходить в кино в выходные?
Rebecca: Мне бы хотелось, но, к сожалению, у меня нет свободного времени.
Arnold: Почему так?
Rebecca: Мой отец возвращается из Австралии. Он там был полгода и мы будем отмечать это большой вечеринкой.
Arnold: Не будет ли ему слишком утомительно вечеринить после перелёта?
Rebecca: Да, вероятно, он будет устал и также страдать от смены часовых поясов. Так что в субботу он сможет отдохнуть. Но в воскресенье вся наша семья придёт на большой барбекю. Я буду готовить всё день в субботу.

So, based on the conversation, Rebecca"s father will be returning from Australia after a six-month stay. To celebrate his return, there will be a big party. Since her father will be tired from the flight and experiencing jetlag, Saturday will be a relaxing day for him. However, on Sunday, the whole family will gather for a big barbecue, and Rebecca will spend Saturday preparing for it.

This weekend is going to be a special and busy time for Rebecca and her family, as they reunite with her father and enjoy the company of their extended family during the barbecue. Rebecca won"t have any free time due to the preparations for the event.

I hope this explanation clarifies the conversation for you, and if you have any further questions, please feel free to ask!