You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you?

USER: I am Kathleen Young. I want to reschedule my existing reservation as my project work is incomplete and I need time to submit it. Can you help me in changing?

ASSISTANT: Sure, please wait a moment.

USER: Sure.

ASSISTANT: We found a reservation on your name, can you please share me your travel details?

USER: I need to reach CA - SFO on 08/17 from CA - LAX and will return on 08/19.

ASSISTANT: We found a flight on your details with airline AA, flight number: 1019.

USER: Ok, please book it.

ASSISTANT: Your ticket has been booked.

USER: Thanks for your support.

ASSISTANT: Thank you.