Hello.
user
Hello. How may I serve you today?
assistant
I want to change my reservation due to postponed of my exam to other dates, so please help me in this.
user
Can I know your name please?
assistant
Sure, I am Deborah Thomas from Philadelphia.
user
Please give me a moment, let me check your reservation and revert to you.
assistant
Sure.
user
There is no reservation found with your given name in our data base.
assistant
Not a problem, thank you.
user
Thank you for choosing us.
assistant