You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you today?

USER: I am looking for a flight from DTW to SFO, can you please help me in booking?

ASSISTANT: Sure, can you share me your trip dates?

USER: My travelling dates are July 04 and July 06.

ASSISTANT: Is there any connection limit?

USER: I need a connecting flight.

ASSISTANT: Do you have any other specifications?

USER: I want to return in afternoon.

ASSISTANT: Can I have your good name?

USER: Sure, my name is Matthew Johnson.

ASSISTANT: Sorry to inform this, no flights are available on your desired route. Thank you for reaching us.

USER: That's ok, thank you for checking.