You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you today?

USER: I am Timothy Thompson. I want to book a flight ticket from  DEN to DTW. Could you help me in booking?

ASSISTANT: Sure, let em know your travel dates please?

USER: My travelling dates are from April 07-09.

ASSISTANT: Do you have any specific arrival and depart timings?

USER: My depart time should be in the afternoon.

ASSISTANT: Ok, is there any class preference?

USER: No.

ASSISTANT: May I know your connection limit?

USER: I need 1 connecting flight.

ASSISTANT: Do you have any airline preference?

USER: No.

ASSISTANT: Sorry to inform you that there are no flight services available on your given details.

USER: That's ok, no problem. Thank you.

ASSISTANT: Thanks for reaching us, have a nice day.