You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I have some health issue, can you please cancel my recent reservation?

ASSISTANT: Sure, may I know your name on which the previous reservation is done?

USER: I have reserved my flight ticket in the name of Joshua Phillips.

ASSISTANT: Sorry, there is no reservation in our database to cancel.

USER: Ok, fine thank you for your help.

ASSISTANT: My pleasure, thank you for opting our service.