You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I am Ronald Baker. I want to book a flight ticket to visit City Park with my family in Denver.

ASSISTANT: Ok.

USER: Could you help me in booking a flight ticket with a single connection?

ASSISTANT: Sure, please share your source and destination airport codes?

USER: My source from GA - ATL and destination to CO - DEN.

ASSISTANT: Ok, what are your preferable dates?

USER: My departure is 12/20 and return date on 12/22.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: We found a UA airline with fare of 100. Shall I proceed for booking with 1011 flight number?

USER: Sure, you can proceed to booking.

ASSISTANT: Your ticket has been booked.

USER: Thanks for your service.

ASSISTANT: Thanks for opting us.