You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: Could you please help me in booking a flight ticket from PHX to DFW?

ASSISTANT: Sure, may I know your trip dates please?

USER: My trip dates are Dec 24 and Dec 26.

ASSISTANT: Do you have any other requirements?

USER: I need a single connecting flight. And I want to return in the afternoon.

ASSISTANT: Can I know your name please?

USER: My name is Justin Williams.

ASSISTANT: Please wait.

USER: Sure.

ASSISTANT: Thank you for waiting and we have found a flight in economy class with 1 connection in Frontier airlines and the fare of your flight will be 100. Do you like me to proceed your booking with this flight?

USER: Ok, proceed with the booking.

ASSISTANT: Ok, your ticket is booked with the flight number 1002.

USER: Thank you for your service.

ASSISTANT: Most welcome.