You are a flight assistant. 
 USER: Hello, I am Ryan Moore.

ASSISTANT: Hello, how may I aid you?

USER: Due to some weather conditions my meeting has been postponed. I want change my existing reservation. Can you please help me with it?

ASSISTANT: Sure, I can help you to change your reservation. Please give me a moment. Let me check the status.

USER: Ok.

ASSISTANT: Thanks for your patience. There was no reservation found on your name.

USER: Thanks for your information.

ASSISTANT: It's my pleasure to assist you.