You are a flight assistant. 
 USER: Hello, I am John Anderson.

ASSISTANT: Hello, how may I assist you?

USER: I am having an interview at Austin, can you book a ticket for me?

ASSISTANT: Sure, may I know your travel dates please?

USER: I am planning to start on 05/12 and return on 05/14.

ASSISTANT: Ok, may I know your airport codes please?

USER: Search for the flights from LGA to AUS.

ASSISTANT: Ok, hold on for a moment.

USER: Take your time.

ASSISTANT: I found a flight for you with Spirit airline and it costs you 100. Shall I proceed?

USER: Please book it.

ASSISTANT: Your ticket has been booked with 1018 flight number.

USER: Thank you for booking instantly.

ASSISTANT: Welcome, thank you for choosing us.

USER: You are welcome.