You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you today?

USER: Could you please cancel my recent reservation due to my health issue?

ASSISTANT: Sure, can I know your good name to proceed further?

USER: My name is Robert Perez.

ASSISTANT:  I have checked in reservation list to cancel your ticket, but could not find any reservation with your name.

USER: Not a problem, thank you.

ASSISTANT: Thank you for contacting us.