You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, what can I do for you today?

USER: I am Debra Lewis. Please book me a ticket from BOS to DEN to meet my family members.

ASSISTANT: Sure, may I know your travelling dates?

USER: I have planned to travel on 12/27 and 12/29.

ASSISTANT: Do you have any halt limit?

USER: I need a direct flight.

ASSISTANT: May I know your price limit?

USER: I can pay up to 1000.

ASSISTANT: Sorry to say, we have a connecting flight to your destination. Can I proceed?

USER: Ok, no problem. I will choose some other way to reach my destination.

ASSISTANT: Ok, hope we serve you next time.

USER: Thank you.

ASSISTANT: Thank you for choosing us.