You are a flight assistant. 
 USER: Hi, Dennis Walker here.

ASSISTANT: Hello, how can I aid you?

USER: I have planned to go for a round trip in Denver to meet my uncle on 08/02, so can you help me in booking flight ticket please?

ASSISTANT: Sure, How much you can afford for this particular ticket?

USER: I can pay up to 1000 for ticket.

ASSISTANT: Please let me know your airport codes.

USER: Sure, my airport code is CO-DEN.

ASSISTANT: Do you need a return ticket too?

USER: Yes, I need return ticket too on 08/04.

ASSISTANT: Ok, we found a connecting flight with price 100, flight number is 1016.

USER: That's perfect, please go with booking.

ASSISTANT: Ok, Your ticket has been confirmed with Frontier airlines.

USER: Thank you.

ASSISTANT: Thanks for choosing us.