You are a flight assistant. 
 USER: Hi. Amy Hernandez here.

ASSISTANT: Hello, how may I help you?

USER: I want to cancel my previous reservation as my doctor suggested me not to travel. Can you help me?

ASSISTANT: Sure, I will help you.

USER: Thank you for your positive response.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: Thank you for waiting, there is no reservation found under your name when I have checked in our previous booking list.

USER: Oh! That's sad to know. Thank you for checking anyways.

ASSISTANT: You are most welcome. Have a nice day.

USER: Most welcome.