You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. Which help you are expecting from my side?

USER: Due to health concern, I am unable to travel the trip on that dates, can you please cancel my ticket booking?

ASSISTANT: Sure, I will help you with cancelling, please hold on for a moment to check your reservation status.

USER: Sure.

ASSISTANT: May I know your name please?

USER: Sure, my name is Raymond Hernandez.

ASSISTANT: Raymond, I did not find any reservation with your name.

USER: Ok, no problem. Thank you for your search and quick response.

ASSISTANT: Welcome, thank you for choosing our services.