You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: Can you please help me in booking the flight ticket from IAD to OAK?

ASSISTANT: Sure, I will help you. May I know your planned travel dates please?

USER: My travel dates are July 15 and July 17.

ASSISTANT: Can I have your name please?

USER: Emma Moore.

ASSISTANT: Do you have any connection preference?

USER: I need a single connection flight.

ASSISTANT: May I know your other specifications?

USER: No.

ASSISTANT: I found an economy class in American Airlines with fare 100 and it is a connecting flight. Can I book your ticket?

USER: Please proceed for booking.

ASSISTANT: Ok, your booking is confirmed with flight number 1022.

USER: Thank you for the help.

ASSISTANT: Thank you for choosing us.