You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I render you today?

USER: I am Kevin Thomas. Can you help me in cancelling reservation?

ASSISTANT: Sure. Please wait for some time.

USER: Sure.

ASSISTANT: Thanks for being patient. Unfortunately, there is no reservation found on your given name.

USER: Ok, No issues. Thank you.

ASSISTANT: Thank you for communicating with us.