You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: Can you please help me in reserving my flight from SFO to reach ATL?

ASSISTANT: Sure, please provide your itinerary dates.

USER: Sure, my travel dates are Jan 15th and 17th.

ASSISTANT: May I know your connection limit?

USER: I prefer single connecting flight.

ASSISTANT: Do you have any specifications?

USER: I must return in the afternoon.

ASSISTANT: May I know your name?

USER: Myself Timothy Roberts.

ASSISTANT: Do you have any other preferences?

USER: No.

ASSISTANT: Sorry Timothy Roberts, no flights are available on your route.

USER: Ok, no problem. Anyways, thank you.

ASSISTANT: Thank you for reaching us.