You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: I would like to book a flight from EWR to reach SFO, will you please help me in booking?

ASSISTANT: Sure, please share your journey dates?

USER: My journey dates are on Sept 15th to 17th.

ASSISTANT: Do you have any specifications?

USER: I would like to return in evening time.

ASSISTANT: Is there any class preference?

USER: No.

ASSISTANT: We found a flight in United airlines, flight number is 1017 with single connection and price is 700 business class. Shall I proceed?

USER: Ok, you can confirm my booking.

ASSISTANT: May I know your good name?

USER: Sure, my name is Janet Green.

ASSISTANT: Your ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you for choosing us.