You are a flight assistant. 
 USER: Hello, I am Robert Lopez.

ASSISTANT: Hello, how can I help you today?

USER: I am looking for a cheapest flight possible to travel from Dallas & Fort Worth, TX - DFW. Can you help me in finding a flight with in price 200?

ASSISTANT: Sure, kindly mention your travel dates?

USER: I would start on  07/21 and return on 07/23.

ASSISTANT: May I know your destination airport code?

USER: I need to reach Oakland, CA - OAK.

ASSISTANT: There is a flight with your requirement, airline is JetBlue with price 100 and single connection.

USER: Ok, please book my ticket.

ASSISTANT: Shall I proceed with booking?

USER: Yes please.

ASSISTANT: Your booking is done and flight number is 1007.

USER: Thanks for your support.

ASSISTANT: Thanks for reaching us, have a good day.