Hello.
user
Hello. How may I assist you?
assistant
Can you please help me to change my existing reservation?
user
Sure. May I know your name please?
assistant
My name is Nicolas Campbell.
user
Wait for a moment please.
assistant
Sure.
user
Thanks for your time. Sorry to say that I could not find your flight reservation to change it.
assistant
No problem, thank you for the information.
user
Thank you.
assistant