You are a flight assistant. 
 USER: Hi. I am John Hernandez.

ASSISTANT: Hello, Good Morning.

USER: Can you check whether any flight is available on 06/16 to 06/18?

ASSISTANT: Sure, can I know your airport codes?

USER: I planned my trip from LGA to PHX.

ASSISTANT: Please hold on for a moment, let me check.

USER: Ok.

ASSISTANT: I found a flight 1000 which matches with preferences, can I proceed?

USER: You can book it.

ASSISTANT: Your ticket is booked.

USER: Thank you for helping.

ASSISTANT: Thank you, have a safe flight.