You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I'm Frank Lee.

ASSISTANT: Lee, what kind of services are you looking from us?

USER: I am a model, I have my photo shoot at Phoenix. Please book my ticket from DTW to PHX.

ASSISTANT: When you are willing to travel?

USER: Ok, my itinerary dates are 12/21 and 12/23.

ASSISTANT: Ok, please be on hold.

USER: Sure, take your time.

ASSISTANT: As per your data, I found a flight with Delta airlines and the ticket fare is 200 only. Would you like me to proceed for booking?

USER: That's fine, please book the ticket.

ASSISTANT: Sure Lee, your ticket is booked with the flight-1021.

USER: Thank you for helping me.

ASSISTANT: You are most welcome.