You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Helen Walker.

ASSISTANT: Helen, how can I help you?

USER: I am planning to visit New York, can you please book me a ticket from ORD to JFK?

ASSISTANT: Sure, I am here to help you. Can you please let me know your travel dates?

USER: My preferable journey dates are from 06/14 to 06/16.

ASSISTANT: Ok, please wait for a moment.

USER: Sure, take your own time.

ASSISTANT: There is a flight available with Frontier airlines and the ticket costs you 100 only. Is it ok for you?

USER: Please reserve my ticket with this flight.

ASSISTANT: Helen, your ticket is booked.

USER: Thank you for booking my ticket.

ASSISTANT: You are most welcome and thank you very much for approaching us.