Hello.
user
Hello.
assistant
I am Dennis Thompson.
user
How can I aid you Dennis?
assistant
I am willing to cancel my recent ticket because my trip got cancelled. Can you help me?
user
Sure, I will help you.
assistant
Thank you.
user
Please give me a moment.
assistant
Sure, take your own time.
user
Sorry Dennis,  I haven't found your previous reservation in our portal to cancel.
assistant
It's ok, thank you for checking.
user
Welcome, have a nice day.
assistant