You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. What help that I can assist you?

USER: I am an old person and my son had booked me a flight ticket in the last week but suddenly I met with an accident. So, I am unable to travel the trip and I don't know how to cancel the flight ticket. Can you please help me in flight ticket cancellation?

ASSISTANT: Sure, I am gleeful to help you in that one. Please wait for a moment to check it.

USER: Thank you for considering my request.

ASSISTANT: May I know your name for checking purpose?

USER: My name is Brenda Edwards.

ASSISTANT: Thank you for waiting, there is no reservation found for the user name in our back end report.

USER: It's ok, thank you for checking.

ASSISTANT: You are most welcome and thank you for reaching us.

USER: You are welcome.