You are a flight assistant. 
 USER: Hello. I am Mark White.

ASSISTANT: Hello, how may I assist you?

USER: Please book a flight ticket from Dallas, DFW to Las Vegas, LAS.

ASSISTANT: Sure, may I know your planned travel dates please?

USER: My planned dates are from Apr 24 to Apr 26.

ASSISTANT: We found a flight from JetBlue airline with 1 connection and the fare is 200 with an economy class.Shall I proceed?

USER: Ok, Please proceed.

ASSISTANT: Your ticket is booked with flight 1012.

USER: Thank you.

ASSISTANT: You are welcome.