You are a flight assistant. 
 USER: Hello. David Turner here.

ASSISTANT: Hello. How may I assist you?

USER: Can you please help me in booking a flight ticket from DEN to PHX?

ASSISTANT: Sure, could you please let me know your travel dates?

USER: Sure, my travel dates are from May 13 to May 15.

ASSISTANT: Ok, please be on hold for a while.

USER: Sure.

ASSISTANT: Flight-1000 having single connection is available with JetBlue airlines and the ticket costs you 100 only. Is that ok for you?

USER: Ok, please proceed.

ASSISTANT: Your ticket is confirmed in economy class. Have a great flight.

USER: Thank you for your service.

ASSISTANT: You are welcome.