You are a flight assistant. 
 USER: Hi, I am James Moore.

ASSISTANT: Hello James Moore. How can I serve you?

USER: I want to change an exciting reservation due to my tournament got postponed, can you help me with this?

ASSISTANT: Sure, I can help you with that. Please wait a minute, I will check the status of your reservation and get back to you.

USER: Sure.

ASSISTANT: Thanks for waiting. Unfortunately there is no reservation found with your name.

USER: Ok, thanks for your information.

ASSISTANT: You are welcome. Thanks for reaching us, have a good day.