Hi.
user
Hello. How may I help you?
assistant
Could you please change my existing reservation due to postpone of my trip?
user
Sure, may I know your name?
assistant
My name is Samantha Jackson.
user
Please wait for a moment to check your details.
assistant
Sure.
user
No reservation found on your name.
assistant
Not a problem, thank you for checking.
user
Thank you for reaching us.
assistant