You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Stephanie Collins.

ASSISTANT: How can I help you?

USER: I need to amend my reservation, can you help me out?

ASSISTANT: Please wait a while.

USER: Sure.

ASSISTANT: Sorry to say, there is no reservation on your name in our database.

USER: That's ok, not an issue. Thank you for your help.

ASSISTANT: Thank you for opting us.