You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: Myself Jack Scott. Can you please book a flight ticket from New York to Austin?

ASSISTANT: Sure, may I know your airport codes?

USER: I want to fly from LGA and destination airport is AUS.

ASSISTANT: Ok, please tell me your trip dates.

USER: I have to attend a business meeting on 06/18 so I want to departure on 06/17 and please book my return ticket also on 06/19.

ASSISTANT: Jack, there is no plane on your requested travel dates.

USER: Oh! I am very disappointed with your service, I will go with another airline.

ASSISTANT: Thank you for choosing us, have a great day.

USER: Thank you for your information.