You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you for today?

USER: Melissa Collins here. My family planned a trip to Denver Zoo Park, so I want to book a ticket from Fort Worth.

ASSISTANT: Ok, can you please provide your preferable dates of journey?

USER: My departure date is on 07/30 and return on 08/01.

ASSISTANT: Please, provide your source and destination airport codes.

USER: My departure airport code is DFW and destination airport is DEN.

ASSISTANT: Here is a flight-1024 with 1 connection limit, costs 100 which is from Southwest airlines. Shall I proceed?

USER: Please proceed for booking.

ASSISTANT: Your flight ticket has been confirmed with flight 1024.

USER: Thank you for your help.

ASSISTANT: Most welcome, thank you for contacting our services. Have a safe journey.