You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Ruth Walker.

ASSISTANT: How can I help you?

USER: I would like to book a ticket to meet my boss at San Francisco,can you please help me to book a ticket?

ASSISTANT: Sure, may I know your journey dates please?

USER: I am planning to travel on 03/27 and I will be return back on 03/29.

ASSISTANT: Ok, may I know your nearest airport code and your destination airport code?

USER: My source airport code is ORD and my destination airport code SFO.

ASSISTANT: Wait for a while.

USER: Sure.

ASSISTANT: Spirit airlines is available on this route with ticket fare of 100, shall I book your ticket?

USER: Yes proceed for that.

ASSISTANT: Your ticket is booked with flight number 1001.

USER: Thank you very much for helping me.

ASSISTANT: Thank you for approaching us.