You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I best serve you today?

USER: Can you help me to book a flight ticket from OAK to ORD?

ASSISTANT: Sure, can you please mention your depart and arrival dates of your journey?

USER: My travel dates are Sept, 10 and Sept, 12.

ASSISTANT: Do you like to go with a connecting or direct flight?

USER: I need connecting flight.

ASSISTANT: May I know if you prefer to have any other comforts in your journey?

USER: I prefer to travel in economy class.

ASSISTANT: Can I know your good name to proceed further?

USER: Robert Scott here.

ASSISTANT:   Here, I found a flight for you with 1 stopover in economy class and it costs you 100. Can I proceed?

USER: Please proceed.

ASSISTANT: Your booking is confirmed and the flight number is 1018.

USER: Thank you.

ASSISTANT: Thank you for choosing us.