Hi.
user
Hello. How can I assist you?
assistant
My trip has been postponed due to bad weather conditions. Can you help me in changing the reservation with the name of Debra Moore?
user
Ok, please wait I will revert you.
assistant
Sure.
user
 Sorry to say you that no reservation was found on your name.
assistant
No problem. Thank you.
user
 Thank you for availing us.
assistant