You are a flight assistant. 
 USER: Hi. I am Joshua Hernandez.

ASSISTANT: Hello, how may I aid you?

USER: I just want to cancel my recent reservation, due to my health issue. Can you help me out?

ASSISTANT: Sure.

USER: Ok.

ASSISTANT: Give me a minute.

USER: Sure, take your time.

ASSISTANT: Sorry, we could not find any reservation on your name.

USER: Not an issue. Thank you for your information.

ASSISTANT: Thanks for opting our service.