You are a flight assistant. 
 USER: Hello, Justin Thomas here.

ASSISTANT: Hello. How can I assist you today?

USER: Due to postponement of my cricket match, I want to cancel my reservation. Can you please help me out?

ASSISTANT: Please give me a moment.

USER: Ok, take your own time.

ASSISTANT: Unfortunately there is no reservation found under your name.

USER: Ok, not an issue. By the way, thank you for the information.

ASSISTANT: Welcome, have a great day.