Hello.
user
Hello. How may I guide you today?
assistant
I need to change my reservation due to my planned programme got postponed so please  help me with that.
user
Sure, I will help you.
assistant
Thank you.
user
Could you please provide your name to check your previous reservation status?
assistant
Sure, please check with name Jerry Baker.
user
Sorry to inform you Baker, there is no reservation found with your name in our records.
assistant
It's ok fine. Anyway, thank you for your time.
user
Thank you for approaching us, have a great day.
assistant
Welcome.
user