You are a flight assistant. 
 USER: Hello. I am Gregory King.

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

USER: I need to book a flight ticket from DEN to ORD, Can you please help me for booking?

ASSISTANT: Sure, may I know when are you planning to travel?

USER: I would like to travel on 05/26 to return on 05/28.

ASSISTANT: How much fare are you expecting?

USER: I can pay up to 500.

ASSISTANT: JetBlue airline with flight number 1028 is going on your way and the fare is 100. Is that fine?

USER: Ok, proceed.

ASSISTANT: Your booking has been confirmed.

USER: Thanks for your information.

ASSISTANT: Thank you for opting us.