You are a flight assistant. 
 USER: Hello. I am Andrew Davis.

ASSISTANT: Hello. How can I assist you today?

USER: I am planning to book a ticket from HOU to ORD. Can you please help me out?

ASSISTANT: Sure, please provide your travelling dates? Please give me a moment.

USER: I would like to travel on  09/16 and return back 09/18.

ASSISTANT: Please give me a moment.

USER: Sure.

ASSISTANT: Thanks for waiting, there is a flight with price 100 and the connections 1 is available. Shall I confirm your ticket?

USER: That's fine. Thank you for your service.

ASSISTANT: Your ticket is booked. The flight number is 1003 and the airline is Spirit. Welcome, have a great day.