You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you at this moment?

USER: I am Christopher Evans.

ASSISTANT: Welcome to our agency Evans.

USER: I would like to book a flight ticket  from OAK to JFK. Can you find that for me?

ASSISTANT: Evans, may I know your travelling dates for the following journey?

USER: These are my dates of journey 07/27 and 07/29.

ASSISTANT: Flight-1019 is available for you with 1 connection at the price of 100, shall I book it for you?

USER: Yes, please book the ticket.

ASSISTANT: Your reservation is confirmed with Delta airlines.

USER: Thank you for your support.

ASSISTANT: Have a nice day.