You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I'm Raymond Davis.

ASSISTANT: How can I help you?

USER: I am planning to attend music concert at LGA, can you please help me with booking a flight ticket from ORD?

ASSISTANT: May I know your travelling dates please?

USER: Sure, I would like to take off on 11/25 and return back on 11/27.

ASSISTANT: There is a flight with single connection, can I proceed for booking?

USER: Yes, please proceed with the booking if the price limit does not exceed 500.

ASSISTANT: Your booking is done in 1001 flight. Thank you.

USER: You are welcome.