You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Dennis Evans.

ASSISTANT: How can I assist you?

USER: I would like to book a ticket from BOS to JFK, can you please help me out?

ASSISTANT: Sure, I'm gleeful to help you with that. May I know your preferable travel dates please?

USER: I am travelling on these dates 12/31 and 01/02.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

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

USER: Ok, you can proceed.

ASSISTANT: I have successfully booked your ticket with flight-1021, have a safe journey.

USER: Thank you for your services.

ASSISTANT: Thank you for choosing us.