You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

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

ASSISTANT: Sure, can I know your name?

USER: Ticket was reserved on the name John Anderson.

ASSISTANT: Sorry, there is no reservation found on given name.

USER: No issues. Thank you for checking.

ASSISTANT: Thank you for reaching us.