You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you at this moment?

USER: I am planning to attend a Seminar in San Francisco SFO from JFK. Can you make a reservation for me?

ASSISTANT: Sure, can you please forward your journey dates?

USER: Ok, I want to airborne on Jan 15 and return on Jan 17.

ASSISTANT: Do you have any restrictions on connection limit?

USER: I need a direct flight.

ASSISTANT: Please let me know, if you have any other requirements.

USER: No, I don't have any other requirements.

ASSISTANT: May I know your name please?

USER: Yes, I am Edwards Wilson.

ASSISTANT: Sorry to inform you that, we could not find any flights matching your specifications.

USER: That's fine, no problem. Thank you for your help.

ASSISTANT: Thank you for approaching us.