You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you today?

USER: I am Janet Young, want to change my recent reservation due to some emergency. Please help me out with that.

ASSISTANT: Sure, I will help you. Please wait for a moment.

USER: Thanks. Sure.

ASSISTANT: Janet, there is no active reservation found under your name in our database.

USER: It's ok, thank you for your help.

ASSISTANT: You are welcome.