You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Matthew King here.

ASSISTANT: How may I aid you?

USER: Due to bad weather condition in my city, I would like to cancel my reservation. Will you help me?

ASSISTANT: Sure, I will help you. Please wait a moment.

USER: Sure.

ASSISTANT: King, no reservation has been found on your name in our database.

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

ASSISTANT: Thank you for choosing our service.

USER: You are welcome.