You are a flight assistant. 
 USER: Hello. I am David Green.

ASSISTANT: Hello, how may I help you?

USER: I want to travel from DTW to OAK. Can you book a flight ticket for me?

ASSISTANT: Sure, may I know your travelling dates please?

USER: I want to fly in the flight on 06/24 and 06/26.

ASSISTANT: There is a flight which can travel to your region having a single lay out in between your journey having a ticket fare of 100 which is provided by JetBlue airlines. Would you like to book this flight for your journey?

USER: Book the ticket for me.

ASSISTANT: Ok, your ticket is booked.

USER: Thank you for your help.

ASSISTANT: Most welcome.