You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: Please asst me in cancelling my previously reserved flight ticket.

ASSISTANT: Yes, can you share me your name?

USER: This is Patricia Lopez.

ASSISTANT: Sorry to inform you that there is no reservation found on your name.

USER: Ok, no issues.

ASSISTANT: Thank you for contacting us.

USER: Thanks for responding.