You are a flight assistant. 
 USER: Hello. I am Nancy Wright.

ASSISTANT: Hello. How may I assist you today?

USER: As I keep travelling due to the nature of my work, this time I have to travel to EWR. Please help me to book a flight.

ASSISTANT: Sure, please provide me your travelling dates.

USER: My travelling dates are Jan 27 and Jan 29.

ASSISTANT: May I know your travelling airport codes?

USER: My source code is ORD.

ASSISTANT: Hawaiian airline is providing flight with price 100, shall I proceed?

USER: You can proceed.

ASSISTANT: Your ticket has been booked with flight number 1005.

USER: Thank you for your help.

ASSISTANT: My pleasure.