You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Shirley Hill, help me to cancel my ticket.

ASSISTANT: Sure Shirley.

USER: Thank you.

ASSISTANT: Please wait, I will get back to you.

USER: Ok.

ASSISTANT: Sorry Hill, no reservation found on your name in our database.

USER: No issues, thank you for information.

ASSISTANT: It's my pleasure, have a nice day.