Hello.
user
Hello, how may I help you today?
assistant
I want to change my reservation, can you please help me to modify my travel dates?
user
Sure, may I know your good name please?
assistant
My name is George Brown.
user
Please wait a minute.
assistant
Sure.
user
Sorry to say that, there is no active reservation found on your name.
assistant
Ok, not a problem. Thank you.
user
Thank you for choosing us.
assistant