You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Justin Thompson.

ASSISTANT: How may I serve you at this moment?

USER: I have to attend a Music Concert at Detroit, could you please help me with booking a flight ticket from DFW to DTW?

ASSISTANT: Sure, provide your travelling dates.

USER: I would like to depart on Mar 9th and return on Mar 11th.

ASSISTANT: How may I know your class preference?

USER: I am comfortable with any class.

ASSISTANT: Ok, help me with your departure and return time?

USER: Make sure that my return time must be morning. And I need a connecting flight.

ASSISTANT: Ok, do you have any other requirements?

USER: No.

ASSISTANT: There are no flights found on your requested dates.

USER: Ok, not an issue. Anyways, thank you for the information.

ASSISTANT: Thank you for reaching us.