You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: I am Stephen Lee want to visit New York, can you book a ticket on 12/21 and 12/23?

ASSISTANT: May I know your airport codes please?

USER: Sure, I want to fly from ORD to JFK.

ASSISTANT: Hawaiian airlines is having a flight with travel charge of 100, shall I proceed booking?

USER: Yes, proceed.

ASSISTANT: Your ticket has been booked with flight-1014, have a safe journey.

USER: Thank you.

ASSISTANT: Thank you for choosing us.