You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: My holiday trip got cancelled due to bad weather, can you please help me in cancelling recent reservation?

ASSISTANT: Sure, may I know your name?

USER: I am David Martin.

ASSISTANT: Thank you, please wait for a moment to check your details.

USER: Ok.

ASSISTANT: Sorry, no reservation found on your name in my database.

USER: Ok, no problem.

ASSISTANT: Thank you for reaching us, have a nice day.

USER: Thank you.