Hello, I am Nicholas Robinson.
user
Hello, how can I help you?
assistant
Due to bad weather condition, I want to change my existing reservation. Can you help me with it.
user
Sure, Please wait for a while, I will check and get back to you.
assistant
Sure.
user
Sorry to tell that there is no reservation  found on your name.
assistant
OK, no problem.
user
Thank you for approaching us.
assistant
Thank you, for the information.
user