You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you?

USER: I need to book a flight ticket from DTW to OAK, Can you please help me for booking?

ASSISTANT: Sure, may I know your travel dates?

USER: I would like to travel on 07/22 to return on 07/24.

ASSISTANT: Do you have any connection limit?

USER: I need a connecting flight.

ASSISTANT: Any other preferences?

USER: Yes, I need a return time morning.

ASSISTANT: May I know your name?

USER: Carol Martinez here.

ASSISTANT: Ok, please wait a minute.

USER: Sure.

ASSISTANT: Sorry to say that there were no flights found on your route.

USER: Ok, no problem. Thanks for your information.

ASSISTANT: Thank you for reaching us.