You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Dorothy Hill.

ASSISTANT: How can I help you?

USER: I would like to visit New York on a business work. Will you please help me to get a flight ticket?

ASSISTANT: Sure, can I know your travel details Please?

USER: My source is CO-DEN and the destination will be NY-EWR.

ASSISTANT: Can I know your travel dates please?

USER: My planned dates are 09/22 and 09/24.

ASSISTANT: OK, please wait a moment.

USER: Sure.

ASSISTANT: Sorry, there are no flights available as per your request.

USER: OK, it's fine.

ASSISTANT: Thank you for reaching us, have a good day.

USER: Thank you for your help.