You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I want to book a flight ticket from SFO to DCA. Could you help me in booking?

ASSISTANT: I am your problem solver for today and what help that you are looking from my end?

USER: I want to book a flight ticket. I have mentioned above.

ASSISTANT: Sure, I am gleeful to help you with that. Can you please mention on what dates that you would like to reserve your flight ticket?

USER: My planned traveling dates are from Jan 29 - 31.

ASSISTANT: Can you please share your connection limit in your journey?

USER: I prefer for connecting flight.

ASSISTANT: Can I know your airline preference?

USER: I am comfort with any.

ASSISTANT: Ok, be on hold for a while to check for the flight availability and I will get back to you.

USER: Ok.

ASSISTANT: Thank you for your being on hold, can I know your name for reference purpose?

USER: Brandon Garcia.

ASSISTANT: Ok, I regret to say that no flight is moving to your destination location on your travelling dates to book a flight ticket.

USER: That's ok, no problem. Thank you.