Hello.
user
Hello. How may I aid you?
assistant
I have to attend an important meeting, so I am unable to catch the flight. Can you please change the travelling dates of my previous ticket?
user
Sure, I am here to help you.
assistant
Thank you.
user
Can I know your name for checking your past reservation status?
assistant
Ok, my name is Charles Hernandez.
user
Ok Charles, please wait for a minute.
assistant
Ok, take your time.
user
Sorry for the inconvenience, there is no reservation on your name in our database.
assistant
It's ok, thank you for spending your valuable time.
user
Thank you for contacting us.
assistant