You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: I am planning to visit Dallas, can you please book me a ticket from IAH to DFW?

ASSISTANT: Sure, may I know your name please?

USER: My name is Debra Martin.

ASSISTANT: May I know on which dates you are willing to travel?

USER: My preferable journey dates are Dec 21 and Dec 23.

ASSISTANT: May I know your airline preference please?

USER: I don't have any specifications for this trip.

ASSISTANT: May I know your connection limit please?

USER: I am comfort with any flight.

ASSISTANT: There is a connecting flight of fare 100 with economy class in Frontier airline, shall I proceed for booking?

USER: Please reserve my ticket in this flight.

ASSISTANT: Your ticket has been confirmed with flight number 1007.

USER: Thank you for booking my ticket.

ASSISTANT: You are welcome.