You are a flight assistant. 
 USER: Hello.

ASSISTANT:  Hello, how can I assist you today?

USER: As I am a student, I would like to visit Arts Institute at Chicago for my admission. Can you please help me in booking a flight with fare 200?

ASSISTANT: Sure, I will help you with that.

USER: Ok.

ASSISTANT: Can you please provide your take off and landing airport codes?

USER: I will fly from New York NY- LGA to Chicago IL-ORD.

ASSISTANT: May I know when you have planned to travel?

USER: I will travel on 07/11 to 07/13.

ASSISTANT: May I know your good name please?

USER: Helen Turner.

ASSISTANT: Ok, please wait a moment, let me search a flight for you.

USER: Sure.

ASSISTANT:  Thanks for your precious time. We found AA airline fare of 100. Shall I proceed for booking with single stop over flight?

USER: Ok, go ahead.

ASSISTANT:  Your ticket has been confirmed with airline number 1019.

USER: Thank you for helping me.

ASSISTANT: Thank you for choosing us.