You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I oblige you today?

USER: I am Stephen Evans. My family tour trip got postponed, so I want to cancel my reservation. Could you please help me in the cancellation?

ASSISTANT: Sure, please provide me your name?

USER: I already mentioned above.

ASSISTANT: Ok, please wait a minute.

USER: Ok.

ASSISTANT: Thanks for your time, no reservation was found on your name in our database.

USER: Not an issue. Thank you.

ASSISTANT: Thank you for contacting us.