You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you?

USER: I am Amanda Martin. I want to change my existing reservation. Please help me with it.

ASSISTANT: Sure, we are here to help you in easy method.

USER: Ok.

ASSISTANT: No reservation found with your name.

USER: Ok, not an issue. Thanks for the information.

ASSISTANT: Thank you for reaching us, have a nice day.