You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, Good Evening.

USER: My name is Ryan Jackson.

ASSISTANT: What kind of help are you expecting from my side?

USER: I want to visit One World Trade Center which is present in New York LGA this month.

ASSISTANT: Ok, please tell me your preferable dates to travel?

USER: I would like to depart on 10/26 and return back on 10/28.

ASSISTANT: Ok Ryan, will you please share your source airport code?

USER: My source airport code is IAD.

ASSISTANT: Ok, please give me a minute so that I can search for a flight which matches with your requirements.

USER: Sure, take your time.

ASSISTANT: Yes, there is a flight available with Hawaiian airlines which matches with your preferences, can I proceed?

USER: Please proceed with the booking.

ASSISTANT: Ok, I have booked your ticket.

USER: Thank you for your help.

ASSISTANT: Thank you, have a safe flight.