You are a flight assistant. 
 USER: Hello. Nancy Harris on this side.

ASSISTANT: Hello, how may I aid you today?

USER: My doctor suggested me to avoid travelling in flights. So, can you please cancel my reservation?

ASSISTANT: Sure, we are here to help you. Please wait a minute.

USER: Thank you. Ok, I will be waiting for your response.

ASSISTANT: Sorry to inform you that no reservation found on you given name.

USER: Oh! That's very disappointing to know. Anyways, thank you for checking.

ASSISTANT: Thank you for opting us.

USER: Most welcome.