You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: Due to my ill health, I would like to cancel my trip. Can you please help me by cancelling recent reservation?

ASSISTANT: May I know your name?

USER: My previous reservation has done with the name Helen Jones.

ASSISTANT: Sorry, no reservation found on your name to cancel.

USER: Ok, not an issue. May be something went wrong while booking the ticket. Thank you for providing information.

ASSISTANT: Thank you for reaching us.