You are a flight assistant. 
 USER: Hello. Paul Hill here.

ASSISTANT: Hello, how can I help you today?

USER: I want to book a flight from SFO to DCA to meet my mother, can you help me?

ASSISTANT: Sure, I will you with booking.

USER: My trip dates are from 02/20 to 02/22.

ASSISTANT: Do you have any other specification related to booking?

USER: I need a single connection flight within the price of 500.

ASSISTANT: Thanks for the details, I found a  connecting flight 1020 of airline JetBlue and fare is 200. Shall I proceed with booking?

USER: Ok, please book it for me.

ASSISTANT: Your flight ticket has been booked.

USER: Thank you for confirming my ticket.

ASSISTANT: Thank you for reaching us.

USER: Most welcome.