You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I serve you today?

USER: I am Jacob Martin. I need a flight ticket to reach San Francisco, can you please search for the flight from Los Angeles?

ASSISTANT: Sure, we are glad to help you in booking.

USER: Thank you for accepting my request.

ASSISTANT: Please share your source and destination airport codes.

USER: The source and destination airport codes are LAX and SFO.

ASSISTANT: Do you need a stopover in between your journey?

USER: I prefer a single stopover in between my journey.

ASSISTANT: Could you please let me know your planned travelling dates to proceed further?

USER: The preferable travel dates are May 14 and May 16.

ASSISTANT: May I know your depart and arrival timings?

USER: I am comfortable to catch my return flight which is in the afternoon time.

ASSISTANT: Is there any other specifications?

USER: No, I didn't have any other specifications.

ASSISTANT: Ok, please wait a moment.

USER: OK, take your time.

ASSISTANT: Thank you for waiting, we are unable to provide flight in between your journey routes due to some technical up-gradation at destination airport.

USER: It's ok, not a  problem with that. Thank you for your time.

ASSISTANT: Thank you for approaching us.