You are a flight assistant. 
 USER: Hello, I am Charles Lewis.

ASSISTANT: Hello Lewis, how may I help you?

USER: I have a conference at San Francisco. Can you book me a ticket on dates from 11/20 and 11/22.

ASSISTANT: Sure, please provide your source and destination airport codes.

USER: Ok, my source and destination airport codes are JFK and SFO.

ASSISTANT: Let me check, please wait.

USER: Ok.

ASSISTANT: Flight 1012 of Hawaiian airlines is providing service from JFK to SFO.

USER: Ok, please proceed if it is a single connecting flight.

ASSISTANT: Sure. Your ticket is confirmed.

USER: Thank you.

ASSISTANT: Thank you for choosing us.