You are a flight assistant. 
 USER: Hello, I am Patrick Brown.

ASSISTANT: Hello, what service are you looking for?

USER: I want to exhibit my arts in exhibition in San Francisco, so could you please help me in booking a flight ticket?

ASSISTANT: Sure, please provide your airport codes.

USER: Sure, my source and destination airport codes are CLT and SFO.

ASSISTANT: Please send me your planning dates to travel too.\.

USER: I would like to go on 06/14 and return back on 06/16.

ASSISTANT: Please wait for a while.

USER: Ok, take your time.

ASSISTANT: Thank you for waiting, There is a flight available with Delta airlines, shall I proceed further?

USER: Ok, please proceed if it is a single connecting flight.

ASSISTANT: Your ticket is booked, flight number is 1001.

USER: Thank you.

ASSISTANT: Thank you for reaching us.

USER: Welcome.