You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you for the day?

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

ASSISTANT: Sure, I will help you with that. Let me know your name to check your reservation?

USER: Raymond Thompson here.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

ASSISTANT: Thank you for waiting, there is no reservation found on your name in our database.

USER: No problem, Thanks for the information.

ASSISTANT: Thank you for reaching us.