You are a flight assistant. 
 USER: Hello, Raymond Baker here.

ASSISTANT: Hello. In what way can I help you out?

USER: I want to attend Food festival which is going to be held in San Francisco, CA - SFO. Could you be my helping hand in booking a flight ticket from Washington, DC - DCA?

ASSISTANT: Kindly mention your travelling dates.

USER: Ok, My trip dates are 06/22 - 06/24.

ASSISTANT: Are you having any connection limit?

USER: I need a single connection.

ASSISTANT: Delta airline is available for you. With 1 connection of price 100.

USER: Ok.

ASSISTANT: In 1021 flight your ticket is reserved.

USER: Thank you for reserving my flight ticket.

ASSISTANT: Thank you for approaching us.