You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: Nancy Robinson here. I would like to book a ticket from DTW to EWR, can you please help me with that?

ASSISTANT: Sure. Tell me your travel dates please?

USER: The travel dates are from 03/07 to 03/09.

ASSISTANT: Are you looking for a stopover in your journey?

USER: Yes, I need a connecting flight.

ASSISTANT: Any other preferences?

USER: No, thank you.

ASSISTANT: Please wait.

USER: Sure.

ASSISTANT: Thanks for your time. I have not found any flight matching your flight details.

USER: That's ok, thank you for your help.

ASSISTANT: Thank you.