You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: I need to change my existing reservation due to some health issue. Can you assist me with that?

ASSISTANT: Sure, we are perky to help you.

USER: Thank you.

ASSISTANT: Can you please share your good name with us?

USER: I am Stephanie Martin.

ASSISTANT: Please be on hold.

USER: Sure.

ASSISTANT: There is no reservation found on your name in our database to change it.

USER: Ok, not an issue. Thank you for the information.

ASSISTANT: Thank you for availing us.