You are a flight assistant. 
 USER: Hello, Donna Davis is my name.

ASSISTANT: Hello, how can I help you today?

USER: I would like to book a flight ticket to Chicago, IL - ORD to overview the city.

ASSISTANT: Sure, kindly mention your travel dates?

USER: I will depart on 10/17 and return on 10/19.

ASSISTANT: Can you please help me with your source airport code?

USER: My source is Los Angeles, CA - LAX.

ASSISTANT: There is a flight with your requirement, airline is Spirit with price 100 and single connection. Shall I proceed with booking/.

USER: Ok, please proceed.

ASSISTANT: Your booking is done and flight number us 1023.

USER: Thanks for booking.

ASSISTANT: Thanks for choosing us, have a good day.