Hi. I am Benjamin Collins.
user
Hello, how may I address you?
assistant
 I want to change my reservation, due to change in weather conditions at my place. Can you help me in my changing reservation?
user
Sure, please give me a minute.
assistant
Sure.
user
There is no reservation found with your name.
assistant
Not an issue. Thank you for your kind information.
user
Thanks for choosing us.
assistant