You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I would like to travel from DTW to ATL as a business trip, can you do the reservation?

ASSISTANT: Please provide your travelling dates?

USER: My trip dates are 03/01 and 03/03.

ASSISTANT: Is there any connection preference?

USER: I need a connecting flight.

ASSISTANT: Do you have any preference?

USER: I am comfortable with economy class and departure time should be morning.

ASSISTANT: Can I know your name?

USER: Gregory Scott here.

ASSISTANT: Sorry, there is no flight with your travelling dates.

USER: No problem, thanks for the information.

ASSISTANT: Thank you.