You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: Can you please help me to book a flight from DEN to PHX?

ASSISTANT: Sure, can I know your trip dates?

USER: I want to travel on Apr 7 and need to return on Apr 9.

ASSISTANT: Do you have any connection limit?

USER: Yes, I need a flight with single connection.

ASSISTANT: Is there any other specifications?

USER: No.

ASSISTANT: Can I know your good name?

USER: Nicholas Collins.

ASSISTANT:   Here, I found a flight for you with 1 stopover in economy class and it costs you 300. Can I proceed?

USER: Ok, please proceed.

ASSISTANT: Your ticket has been reserved with the flight-1015.

USER: Thank you.

ASSISTANT: Thank you for reaching us.