You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: Please help me to book  a flight ticket from PHX to DEN.

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

USER: My journey dates are from Nov, 11 to Nov, 13.

ASSISTANT: Do you have any other requirements?

USER: I need a single connecting flight.

ASSISTANT: Can I know your name please?

USER: Mark Campbell.

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT: Thank you for waiting and we have found a flight in economy class with 1 connection in United airlines and the fare of your flight will be 200. Do you like me to proceed your booking with this flight?

USER: Please proceed.

ASSISTANT: Ok, your ticket is booked with the flight number 1003.

USER: Thank you for booking.

ASSISTANT: Most welcome.