Hello, I am Mark Lee.
user
Hello, how can I assist you for the day?
assistant
I want to postpone my trip due to an emergency. Can you help me to do some modifications in my existing reservation?
user
Sure, I am here to help you.
assistant
Thank you.
user
Please wait for a moment.
assistant
Take your time.
user
Sorry, we found no reservation on your given name.
assistant
No issues. Thank you for checking.
user
Thank you for reaching us.
assistant
You are welcome.
user