You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I aid you now?

USER: I am Patricia Johnson, want to alter my recent reservation due to some emergency. Please help me out with that.

ASSISTANT: Sure, I am here to help you.

USER: Thanks.

ASSISTANT: Please, be on hold.

USER: Sure.

ASSISTANT: Sorry, we have not found any reservation on your name.

USER: It's ok, thank you.

ASSISTANT: Thank you for opting us.