You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I'm Samuel Garcia.

ASSISTANT: How can I assist you Samuel?

USER: I am planning to attend business meeting at IAD, Washington. Can you please help me with booking a flight ticket from SFO?

ASSISTANT: Sure, can you please share your travel dates?

USER: Sure, I would like to take off on 03/26 and return back on 03/28.

ASSISTANT: Please wait for a moment.

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

ASSISTANT: Sorry Samuel, there is no flight available in your route IAD to SFO.

USER: Ok, no issues. I will try another way to complete my trip.

ASSISTANT: Thank you for using our service.

USER: Anyways, thank you for checking.

ASSISTANT: You are welcome.