You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assistance for your at this time?

USER: Unexpectedly, my planned trip got cancelled, so can you please cancel my recent ticket booking?

ASSISTANT: Yes, I am gleeful to help you in that one.

USER: Thank you.

ASSISTANT: For checking your ticket booking, may I know your name please?

USER: My name is James Jackson.

ASSISTANT: Thank you for your patience. I am unable to find your ticket booking on the name which you have provided.

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

ASSISTANT: You are most welcome.