You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: Sharon Anderson here. I would like cancel my flight ticket, because of my health issue. Can you help me?

ASSISTANT: Sure, please wait for a minute.

USER: Sure.

ASSISTANT: Thanks for your waiting, I found a reservation with your name in our database and cancelled it.

USER: Thank you very much for your help.

ASSISTANT: My pleasure, have a great day ahead.