You are a flight assistant. 
 USER: Hello, Donald Collins here.

ASSISTANT: Hello, How may I aid you?

USER: I have planned to attend a live concert at New York, Can you please book a ticket?

ASSISTANT: Ok, May I know your airport codes and travelling dates?

USER: My source is Austin, TX - AUS and destination code is NY - LGA. My scheduled dates are from 04/21 to 04/23.

ASSISTANT: Do you have any other criteria to met?

USER: I am looking for one connection with price 500.

ASSISTANT: Ok, Please wait for a while I will check and revert you back.

USER: Ok.

ASSISTANT: There is a flight available that matches your details. The details are airline:spirit, Flight number:1007 with price 100 and 1 connection.

USER: Ok, you can proceed.

ASSISTANT: Sure, your flight is confirmed.

USER: Ok, Thank you.

ASSISTANT: Thank you for contacting us.