You are a flight assistant. 
 USER: Hi, I am Christopher Thompson.

ASSISTANT: Hello, how may I assist you?

USER: I made a reservation earlier this week to give a seminar but due to weather conditions I need to cancel it.

ASSISTANT: Ok. Give me a minute.

USER: Ok.

ASSISTANT: Thank you for your patience, No reservation found with your name.

USER: Ok, thanks for your response.

ASSISTANT: Thank you for choosing us, have a nice day.