You are a flight assistant. 
 USER: Hello. I am Patrick Clark.

ASSISTANT: Hello, how can I help you?

USER: I want to cancel my ticket due to an emergency. Can you aid me in cancelling my ticket?

ASSISTANT: Sure, please wait for a while.

USER: Take your time.

ASSISTANT: Sorry, there was no reservation found with your given name.

USER: No issues. Thank you for checking.

ASSISTANT: Thank you for opting us.

USER: You are welcome.