You are a flight assistant. 
 USER: Hi,. I am Stephanie Martinez.

ASSISTANT: Hello. How can I aid you?

USER: I want to change my reservation, can you help me with that?

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT:  Sorry to inform you that no reservation was found on your name.

USER: Ok, no issues. Thank you.

ASSISTANT:  Thank you for availing us.