You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: I am Jason Perez from Washington. I need to attend a cultural fest in San Francisco so please help me with flight ticket booking.

ASSISTANT: Sure, I am glad to help you. May I know your airport code please?

USER: Thank you. I would like to travel from IAD to SFO as these are the only airports which are very much near to my travelling locations.

ASSISTANT: Ok, please provide me your travel dates?

USER: Sure, I need to travel on dates of 03/25 and 03/27.

ASSISTANT: Please allow me a moment.

USER: Sure, take your time.

ASSISTANT: Thank you for waiting, here there is a connecting flight available and airfare is about 200. Can I proceed further in booking?

USER: That is fine, please proceed with booking.

ASSISTANT: Your ticket has been reserved for the flight 1018 in AA airlines.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us. Have a great day.