You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you today?

USER: I want to change my existing reservation owing to an emergency.

ASSISTANT: Sure, we are perky to help you. Can you please share your good name with us?

USER: My name is Jennifer Thompson.

ASSISTANT: Please be on hold.

USER: Ok.

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

USER: Thank you.

ASSISTANT: Thank you for availing us.