You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Paul Hill.

ASSISTANT: How may I aid you?

USER: I am planning to book a ticket to attend a meeting at DTW. Can you please help me out to book a ticket from OAK?

ASSISTANT: Sure, on which dates you are planning to travel?

USER: I would like to travel on 04/18 and return back on 04/20.

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 Hawaiian airlines. Would you like to book this flight for your journey?

USER: That's fine. Please proceed the booking.

ASSISTANT: Your ticket is booked.

USER: Thank you for your service.

ASSISTANT: Most welcome.