You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Deborah Evans.

ASSISTANT: How can I assist you?

USER: Please help me in booking my flight ticket from DEN to JFK?

ASSISTANT: Sure, can I know the travel dates please?

USER: My travelling dates are Nov 22 and Nov 24.

ASSISTANT: Could you please provide the departure and return time please?

USER: I need my depart flight at morning time.

ASSISTANT: Do you have any requirements?

USER: I need connecting flight.

ASSISTANT: Ok, wait a moment please.

USER: Ok, sure.

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

USER: Ok, fine thank you for your information.

ASSISTANT: Thank you for approaching us.