You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, may I know your good name?

USER: I am George Rodriguez.

ASSISTANT: George Rodriguez, how may I help you?

USER: As the convocation day which I want to attend in my college got postponed.Can you please cancel my reservation?

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: I have gone through all data, no reservation found with your name.

USER: OK, not an issue.

ASSISTANT: Ok.

USER: Thanks for your kind information.

ASSISTANT: Thank you for choosing us, have a colourful day.