You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: I would like to give a sudden surprise to my parents, I want to book a ticket from DCA to SFO. Please help me out.

ASSISTANT: Sure, will you mention your travelling dates please?

USER: Sure, my travelling dates are 07/24 and 07/26.

ASSISTANT: Please give me a moment.

USER: Sure, take your time.

ASSISTANT: Thanks for waiting, there is a flight with price 100 and the connections 1 is available. Shall I confirm your ticket?

USER: Ok, please confirm with my booking.

ASSISTANT: Please mention the name for booking the ticket.

USER: Sure, myself Michael Wilson.

ASSISTANT: Your ticket is booked. The flight number is 1009 and the airline is Delta.

USER: Thank you for your help.

ASSISTANT: Welcome, have a great day.