You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may  I be at your service today?

USER: I am heading to HOU to attend a party meeting. Can you book me a ticket from CLT?

ASSISTANT: Sure, may I know on which dates you are willing to travel?

USER: I would start on Sept 9th and return on Sept 11th.

ASSISTANT: Can you please let me know your class preference?

USER: I am fine with any class.

ASSISTANT: May I know your connection limit please?

USER: I need 1 stop over.

ASSISTANT: Is there any more preferences?

USER: No.

ASSISTANT: May I know your name please?

USER: I am Karen Wright.

ASSISTANT: Sorry to inform you that, we did not find any flights matching your preferences.

USER: That's alright, thanks for the information.

ASSISTANT: Thank you for choosing us.