You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I want to book a ticket from OAK to MSP. Could you book a ticket?

ASSISTANT: Sure, we are happy to help you. Can I have your travelling dates?

USER: Travelling dates are from July, 26 to July, 28.

ASSISTANT: Do you prefer any lay by in between journey?

USER: I prefer connecting flight.

ASSISTANT: Are there any other specifications for you?

USER: I prefer to travel in economy class.

ASSISTANT: May I know your good name?

USER: Dennis Harris.

ASSISTANT: United Airlines is providing connecting flight with the ticket fare of 100 and depart time is 23:00 hours, arrival time is 19:00 hours. Shall I proceed?

USER: Proceed for booking.

ASSISTANT: Ok, your ticket is reserved in an economy class and the flight number is 1000.

USER: Thank you.

ASSISTANT: Thank you for choosing us.