You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I want to cancel my reservation due to my health issues, can you please help me with it?

ASSISTANT: Sure, may I know your name?

USER: My name is Michelle Martinez.

ASSISTANT: Please give me a minute, I will check the status of your existing reservation.

USER: Sure, take your time.

ASSISTANT: Sorry, there is no reservation found under your name.

USER: Ok, no issues, thank you for checking for the availability.

ASSISTANT: Thank you for contacting us, have a nice day.