You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you for today?

USER: I need to book a flight ticket with the name Nancy Davis, can you book me a ticket with price under 500?

ASSISTANT: Sure, could you please provide your travelling dates?

USER: I would like to travel from 01/13 to 01/15.

ASSISTANT: Ok, could you please let me know your city codes?

USER: I want to travel from OAK as I need to attend my cousin's birthday party at DEN.

ASSISTANT: Ok, please wait a moment I'll check and revert you.

USER: Ok, sure.

ASSISTANT: Thanks for waiting, there is a flight matching your requirements with number 1021 in AA airline. The flight has 1 connection and price is 100. Shall I proceed with your booking?

USER: Please proceed with this booking.

ASSISTANT: Ok, your booking is confirmed.

USER: Thank you.

ASSISTANT: Thank you for reaching us, have a safe journey.