You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I oblige you today?

USER: I am planning to attend my nephew birthday in IAD, so please help me in booking a flight ticket from SFO.

ASSISTANT: Sure, may I know your good name?

USER: Myself Richard Turner.

ASSISTANT: Could I have your trip dates, please?

USER: I want to fly on Nov 11 and return on Nov 13.

ASSISTANT: Do you have any preferences?

USER: I need a single connection.

ASSISTANT: Ok, please wait for a moment.

USER: Ok.

ASSISTANT: We found a United Airlines, price is 200 in economy class with one stopover. Shall I proceed?

USER: You can proceed to booking.

ASSISTANT: Your booking has been confirmed with 1019 flight number.

USER: Thank you.

ASSISTANT: Thank you for opting us.