Hi.
user
Hello, how can I assist you?
assistant
Could you please change my existing reservation due to postpone of my exams?
user
Sure, may I know your name?
assistant
My name is Donna Allen.
user
Please give me a moment to check your ticket status in our database.
assistant
Sure, take your time.
user
Sorry Donna Allen, no reservation is available by your name.
assistant
Not a problem, thanks for checking.
user
Thank you for choosing us.
assistant