You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I am Elizabeth Edwards, want to travel from DEN to DFW. Please help me in booking my ticket.

ASSISTANT: Sure, may I know your departure and arrival dates?

USER: Sure, my travelling dates are from 11/22 to 11/24.

ASSISTANT: Can I know your price limit?

USER: Yes, the price limit is 500.

ASSISTANT: Do you need a direct flight to your destination point?

USER: No, I need a connecting flight in between my journey.

ASSISTANT: Sorry to say, we found a direct flight to your destination point.

USER: It's ok, thank you for your help.

ASSISTANT: Thank you for reaching us, hope we serve you next time.

USER: Thank you.