You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you today?

USER: Can you please help me with booking a flight ticket from DEN to DTW?

ASSISTANT: Sure, can you please share your preferable journey dates?

USER: My travelling dates are from Sept 17-19.

ASSISTANT: May I know your name please?

USER: Anna Martin here.

ASSISTANT: Do you have any other specifications?

USER: I would be comfortable with single stop over.

ASSISTANT: Please wait for a minute.

USER: Sure.

ASSISTANT: I am sorry to say that there is no flight found under your details.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for reaching us.