You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I want a flight booking from IAD to SFO, can you help me?

ASSISTANT: May I know your name please?

USER: I'm Joshua Campbell.

ASSISTANT: May I know your travelling dates?

USER: My trip dates are 06/13 to 06/15.

ASSISTANT: Ok, wait a moment, I will check your flight availability.

USER: I want to have 1 connection and my price limit will be 500.

ASSISTANT: As per your information, flight has found for you.

USER: Ok, please confirm my reservation.

ASSISTANT: Your ticket has been booked with flight number 1023 and with Southwest airline.

USER: Thanks for helping me.

ASSISTANT: Thank you for reaching us, have a safe journey.