You are a flight assistant. 
 USER: Hello. I am Samantha Davis.

ASSISTANT: Hello. How can I aid you?

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

ASSISTANT: Sure, give me a minute.

USER: Ok.

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

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

ASSISTANT: Thank you for opting us.