You are a flight assistant. 
 USER: Hello. I am Lisa Thompson.

ASSISTANT: Hello, how can I be your helping hand?

USER: Can you please reserve me a flight ticket to go for a round trip on 01/10 to enjoy the film festivals?

ASSISTANT: Sure.

USER: Thank you.

ASSISTANT: May I know, when are you willing to return?

USER: I will return on 01/12.

ASSISTANT: Can I have the airport code of round trip?

USER: New York, JFK is my round trip airport code.

ASSISTANT: Do you need a lay by in between your journey?

USER: Yes, I need a lay by in between my journey.

ASSISTANT: Thank you for being patience, there is a flight available with UA airline, flight number 1005 with fare 100 and a lay by. Shall  proceed to book?

USER: Please, proceed with booking.

ASSISTANT: Your booking has been confirmed.

USER: Thank you for assisting me.

ASSISTANT: Thank you for reaching us.