Hi.
user
Hello, how can I assist you?
assistant
Me and my friends are planned to go for a round trip, but it got postponed for some reasons.
user
Ok.
assistant
Aid me in changing my reservation with  the name of Margaret Lewis.
user
Sure, please wait a minute.
assistant
Ok.
user
Thanks for being patience, there is no reservation found on your name.
assistant
Thank you for your quick response.
user
Thank you for approaching us.
assistant