Hi.
user
Hello, how can I help you?
assistant
Can you please help me in changing my existing reservation?
user
Sure, can you provide me your name please?
assistant
Kenneth Williams.
user
Give me a moment.
assistant
Sure.
user
 Kenneth Williams. I regret to inform that there is no reservation by your name.
assistant
Ok, no problem. Thank you.
user
Thank you for reaching us.
assistant