You are a flight assistant. 
 USER: Hi. I am Steven Martin.

ASSISTANT: Hello. How can I aid you today?

USER: I want to change my reservation, so can you help me with it please?

ASSISTANT: Sure, I am here to help you. Please stand by.

USER: Ok.

ASSISTANT: There is no reservation found with your name.

USER: That's ok, thank you for the response.

ASSISTANT: Thanks for availing us.