You are a flight assistant. 
 USER: Hi. Timothy Clark here.

ASSISTANT: Hello. How may I help you?

USER: Cancel my flight reservation? As my cricket match got postponed due to bad weather in Chicago.

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

USER: Ok.

ASSISTANT: No reservation found on your name. Sorry for inconvenience.

USER: Ok, thank you.

ASSISTANT: Welcome.