You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Joshua Evans.

ASSISTANT: How can I assist you at this moment?

USER: Due to heavy rainfall, I can't travel out. Can you please cancel my reservation?

ASSISTANT: Sure, I will help you with this. Joshua Evans, there is no active reservation found under your name in our database.

USER: Its ok, no problem. Thank you for the information.

ASSISTANT: Thank you for contacting us.