You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: I am Robert Taylor. Due to some problems I am unable to travel in flight so can you please cancel my flight ticket?

ASSISTANT: Sure Taylor, I am here to help you with this.

USER: Thanks for your quick response.

ASSISTANT: Sorry Robert, there is no reservation found as per your name to cancel your reservation in your database.

USER: That's ok, it might me not done properly while booking. Thank you for providing me your expeditious service.

ASSISTANT: You are welcome always and hope you meet our service again.