You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I'm Charles Williams.

ASSISTANT: How can I assist you at this moment?

USER: I am planning to attend business meeting at DFW, can you please help me with booking a flight ticket from SFO?

ASSISTANT: Sure, can you please provide your travelling dates to proceed further?

USER: Sure, I would like to take off on 11/30 and return back on 12/02.

ASSISTANT: Give me a moment please, let me check the best flights availability on this route.

USER: Ok, but please make sure that the connection limit is 1.

ASSISTANT: Charles Williams, there are no flights available on this route with 1 connection limit.

USER: Ok, no issues. Thank you for checking.

ASSISTANT: Thank you for contacting us.

USER: You are welcome.