You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: Kevin Edwards here. As I have fallen sick suddenly due to bad weather, I would like to change my recent reservation. Can you help me?

ASSISTANT: Sad to hear that, I will help you in changing your reservation.

USER: Thank you.

ASSISTANT: Give me a minute. Sorry, there is no reservation found under your name.

USER: That's fine. Anyway, thank you for your help.

ASSISTANT: Thank you for reaching us.