You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Justin Gonzalez.

ASSISTANT: How can I help you today?

USER: I would like to go to a event in Detroit, so could you please book a ticket to Detroit?

ASSISTANT: Sure, we are here to help you in booking.

USER: Thank you.

ASSISTANT: Please share your source and destination airport codes.

USER: My source and destination airport codes are PHX and DTW respectively.

ASSISTANT: Do you need a halt in between your journey?

USER: Ensure it is a single connecting flight.

ASSISTANT: Kindly let me know your planned travelling dates to proceed further.

USER: Sure, I would like to go on Dec 16th and return back on Dec 18th.

ASSISTANT: Ok, please wait a moment.

USER: Sure, take your time.

ASSISTANT: Thank you for waiting, we found a Frontier airline matching your essential details with single connection and the fare 100. Shall I book an economy class ticket?

USER: Ok, please proceed for further.

ASSISTANT: Your ticket has been confirmed with the flight number-1019.

USER: Thank you for booking.

ASSISTANT: Thank you for approaching us.

USER: Welcome.