Hello.
user
Hello, how can I assist you today?
assistant
Can you help me to change the flight ticket which I had done a week ago on the name Gary Perez?
user
Sure, please wait for a moment.
assistant
Ok, I will wait a moment.
user
Sorry to say that, no reservation was found with your good name.
assistant
Ok, that is no a problem. Thank you for assisting me.
user
Thank you for reaching us.
assistant