You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: Can you aid me in booking a flight ticket from ORD to SFO?

ASSISTANT: Sure, I will help you. May I know your planned travel dates please?

USER: I am planning to start on July 18th and return back on July 20th.

ASSISTANT: Can I have your name please?

USER: I am Ryan Campbell.

ASSISTANT: Do you need a connecting flight or a direct flight?

USER: Connecting flight.

ASSISTANT: Do you have any other specifications?

USER: No more preferences.

ASSISTANT: I found an economy class in Spirit airlines with fare 200 and it is a direct flight. Can I book your ticket?

USER: Yes, you can go ahead.

ASSISTANT: Ok, your booking is confirmed with flight number 1006.

USER: Thank you for the support.

ASSISTANT: Thank you for reaching us.