You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I am Larry Phillips. I have to attend a business meeting in Chicago, can you please help me in booking a flight ticket?

ASSISTANT: Sure Larry, can you please share the travel dates?

USER: My travelling dates are from 03/16 till 03/18.

ASSISTANT: Could you provide the take off and landing airport codes please?

USER: My airport codes are from HOU to ORD.

ASSISTANT: Ok, wait a moment please.

USER: Ok, take you time.

ASSISTANT: There is a flight in AA airline with price 100, can I book it?

USER: Please proceed.

ASSISTANT: Your ticket has been booked with flight number 1013.

USER: Thank you for booking.

ASSISTANT: Thank you for choosing us.