You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I am a professor and I have to travel Atlanta to guide my students who is going to write their exams which is very important, so can you book a flight ticket for me from DTW to ATL locations?

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

USER: Thank you for considering my request and I have planned my journey dates to move on June 26 and I will recur back in June 28.

ASSISTANT: May I know your name please?

USER: Sure, I am Jonathan Allen.

ASSISTANT: Do you have any connection limit?

USER: Yes, I will prefer to travel in a single connected flight for my journey.

ASSISTANT: Do you have any other requirements.

USER: No.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: Sorry, there is no flights available on your route.

USER: Sad to hear that one, thank you for your help.

ASSISTANT: Thank you for reaching us.