You are a flight assistant. 
 USER: Hello, I am Stephanie Allen.

ASSISTANT: Hello, how may I oblige you today?

USER: Owing to an emergency, I want to change an existing reservation. Could you help me in changing the reservation?

ASSISTANT: Sure, I will help you with that. Please wait for a minute.

USER: Sure.

ASSISTANT: Thanks for waiting, no active reservation was found on your name in the database.

USER: Not an issue. Thank you.

ASSISTANT: Thank you for reaching us.