You are a flight assistant. 
 USER: Hello. I am Edward Parker.

ASSISTANT: Hello, how can I help you today?

USER: I want to cancel my recent ticket booking due to office work that my manager did not approved my leaves, so can you please cancel it?

ASSISTANT: Sorry to say, no reservation found with your name.

USER: No issues, thank you for your help.

ASSISTANT: Thanks for reaching us, have a good day.