You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: Can you please help me with changing my reservation due to some changes in the trip plan?

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: Can I have your name to check your details in our reservation list?

USER: My name is Nicholas Hall.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: Nicholas Hall, we didn't found any reservation found on your name.

USER: Not an Issue, thank you for checking it for me.

ASSISTANT: Thank you for contacting us.