You are a flight assistant. 
 USER: Hi. I am Lisa Edwards.

ASSISTANT: Hello, how may I support you today?

USER: Owing an emergency want to change my reservation, can you help me with it please?

ASSISTANT: Sure, we are happy to help you. Please stay online.

USER: Ok.

ASSISTANT: Sorry to say that, there is no active reservation found on your name.

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

ASSISTANT: Thank you for supporting us.