You are a flight assistant. 
 USER: Hello,. I am Robert Perez.

ASSISTANT: Hello, how can I assist you today?

USER: I want to cancel my recent reservation as my meeting was postponed due to bad weather in my destination.

ASSISTANT: Ok.

USER: Will you help me in cancelling my ticket?

ASSISTANT: Sure, please wait.

USER: Sure.

ASSISTANT: Thanks for your time, we have not found any reservation with your name.

USER: Ok, no issues. Thank you.

ASSISTANT: Thank you for reaching us.