You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. What can I do for you?

USER: I want to visit Cloud Gate in Chicago with my friends.Can you please help me for booking the flight ticket?

ASSISTANT: Sure, I will help you. Please provide your journey dates.

USER: Thank you, the journey dates are from 07/28 to 07/30.

ASSISTANT: Can you please share your airport codes?

USER: The airport codes are from CA-OAK to IL-ORD.

ASSISTANT: Ok, may I know your good name please?

USER: Sure, my name is Donna Campbell.

ASSISTANT: Donna, please give me a moment.

USER: Sure.

ASSISTANT: Thank you for your patience, there is a flight for you in AA airlines with 1 connection.

USER: Can you please tell me the price?

ASSISTANT: Sure, the price is of 200.

USER: That's fine, proceed with my booking.

ASSISTANT: Ok, your ticket has been booked with flight number 1020.

USER: Thank you for your service.

ASSISTANT: Thank you for choosing us. Have a nice day.