You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you?

USER: Due to bad weather conditions, I want to change my existing reservation. Can you help me out?

ASSISTANT: Sure, I am here to help you out. Please can you provide me your help?

USER: Sure, my name is Gary Parker.

ASSISTANT: Sorry, there is no reservation on your name.

USER: That's ok, thank you.

ASSISTANT: Thank you for reaching us.