You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I am Michelle Turner can you help me to cancel my reservation?

ASSISTANT: Sure, I am here to help you out.

USER: I am going to attend my girl friend marriage.

ASSISTANT: Wait a moment please. Michelle Turner, we haven't found any reservation under your name in our database.

USER: Thank you for the information, anyway I couldn't make this journey.

ASSISTANT: Thank you for choosing us.