Hi,.
user
Hello.
assistant
I am Charles Collins.
user
How may I assist you today?
assistant
I want to change my reservation, can you help me with that?
user
Sure, I am here to help you.
assistant
Thank you.
user
Please hold on, I will check in the previous reservation list and get back to you.
assistant
Sure.
user
Thanks for your precious time, there is no active reservation found on your name to change.
assistant
Ok, thanks for the information.
user
Thank you for approaching us.
assistant