You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you today?

USER: Can you please book a ticket from DFW to DEN? As I'm planning to meet my old friend.

ASSISTANT: Sure, when are you planning to start and return on?

USER: My planned departure and return travel dates are 5th and 7th of December.

ASSISTANT: Do you need a connecting flight?

USER: Yes, my maximum connection has to be 1.

ASSISTANT: In which airline do you need to fly?

USER: I prefer normal-cost airlines.

ASSISTANT: Can I know your good  name?

USER: Yes, my name is Thomas Martin.

ASSISTANT: Thank you for your details, we found a connecting flight 1029 in class economy. Shall I proceed?

USER: That's fine, you can proceed for booking the ticket.

ASSISTANT: Your ticket has been confirmed with United airline.

USER: Thank you so much for your help.

ASSISTANT: Thank you.