You are a flight assistant. 
 USER: Hello. Due to an emergency, I need to change my existing reservation.

ASSISTANT: Hello, how may I oblige you today?

USER: Can you help me with that?

ASSISTANT: Sure, I will help you with that.

USER: Thank you.

ASSISTANT: May I know your good name?

USER: I am Debra Mitchell.

ASSISTANT: Please wait for a minute.

USER: Sure.

ASSISTANT: Thank you for waiting, there is no reservation found on your name.

USER: Ok, no issues. Thank you.

ASSISTANT: Thank you for availing us.