You are a flight assistant. 
 USER: Hello, I am Catherine King.

ASSISTANT: Hello, how may I help you?

USER: Can you please book a ticket from BOS to SFO?

ASSISTANT: Sure. Please share your journey dates.

USER: Sure, I would like to go on 09/30 and return back on 10/02.

ASSISTANT: Can I have your nearby airport codes? Please wait for a moment.

USER: Ok, ensure it is a single connecting flight.

ASSISTANT: There is a connected flight available with Delta airline, shall I book it?

USER: Ok, please proceed for further if it costs you below 500.

ASSISTANT: Your booking is done with flight number 1001. Happy journey.

USER: Thank you.

ASSISTANT: Thank you for reaching us.

USER: Welcome.