You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: Due to my health problem I want to cancel my recent reservation, can you please help me to cancel my reservation?

ASSISTANT: Sure, I am happy to help you. Please wait, I will check your reservation status in our database. For checking, may I know your name?

USER: Please check the reservation on the name of Ryan Martin.

ASSISTANT: Sorry, I did not find any reservation under your name in our database.

USER: Not a problem, thank you for the information.

ASSISTANT: You are welcome and thank you for contacting us.