You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I best assist you now?

USER: I would like to watch largest and most complete view of our milky way in galaxy wall at Grainier sky theatre which is located at Chicago, IL - ORD. Can you help me in booking?

ASSISTANT: Sure, may I know your journey dates?

USER: Ok, my trip dates are 02/16 and 02/18.

ASSISTANT: What is your source airport code?

USER: My source airport is San Francisco, CA - SFO.

ASSISTANT: Do you need any other specifications?

USER: Yes, I need a halt in between the journey and the price should be 500.

ASSISTANT: There is a flight found with AA airline of flight number 1014 and fare is 100. Shall I proceed for booking?

USER: Proceed with booking.

ASSISTANT: To proceed further, I need to know your good name?

USER: My name is Thomas Lopez.

ASSISTANT: Your ticket has been booked.

USER: Thank you for booking my ticket.

ASSISTANT: Thanks for choosing our service.