You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I be there for you?

USER: I am Helen Robinson. Can you book a flight ticket from Oakland, OAK to New York, JFK?

ASSISTANT: Sure, please let me know your budget for this booking.

USER: I can bare up to 200.

ASSISTANT: When are you planning to make your trip?

USER: My planned dates are from 12/25 to 12/27.

ASSISTANT: Ok, please give me a moment.

USER: Sure.

ASSISTANT: UA airline with flight number 1011 is going on your way and the fare is 100. Is that okay?

USER: Yes, Please proceed to book.

ASSISTANT: Your reservation has been done.

USER: Thank you.

ASSISTANT: Thank you for choosing us.