You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I would like to travel from ATL to SFO, can you please help me in flight booking?

ASSISTANT: Please provide me your itinerary travel dates.

USER: I will start on Jan 29, return on Jan 31.

ASSISTANT: Could you let us know if you have any class preference?

USER: No.

ASSISTANT: Is there any connection limit?

USER: Yes, I need a single connecting flight.

ASSISTANT: Are there any more preferences that you want to avail?

USER: My return time should be morning.

ASSISTANT: May I know your name please?

USER: My name is Daniel Baker.

ASSISTANT: Give me a moment.

USER: Sure.

ASSISTANT: Daniel Baker. I regret to inform that there are no flights on your route with the given dates.

USER: No problem, thank you.

ASSISTANT: Thank you for reaching us.