You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I guide you?

USER: I am Karen Young. I would like book a ticket from LAX to DCA, can you please help me out?

ASSISTANT: Sure, can I know your preferable dates?

USER: I am travelling on these dates 11/24 and 11/26.

ASSISTANT: I found a flight 1000 of UA airlines matches with your preferences, can I proceed?

USER: Ok, you can proceed with this flight.

ASSISTANT: Your ticket is booked.

USER: Thank you for your services.

ASSISTANT: Thank you, have a safe flight.