You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you today?

USER: Can you please help me in booking a flight ticket to CLT from DFW?

ASSISTANT: Sure, can I know your good name please?

USER: I am Jessica Mitchell.

ASSISTANT:  When you are willing to travel?

USER: My travel dates are from Nov 27 to Nov 29.

ASSISTANT:  Would you let us know if you have any other preferences?

USER: I would like to travel in connecting flight which departs in the evening.

ASSISTANT: Sorry to say that, there are no flights available on the routes of your journey.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for reaching us.