Hello.
user
Hello, how can I help you today?
assistant
Actually my exam is postponed so that I want to change my existing reservation, can you help?
user
Sure, may I know your good name?
assistant
Sure, I am Sarah Scott.
user
Ok, please wait for a moment.
assistant
OK.
user
Sorry, I have found no flight by your name.
assistant
Oh! that's fine. Thank you for your information.
user
Thank you for contacting us.
assistant