You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you?

USER: Owing to an emergency I had to request for this change reservation.

ASSISTANT: Sure, I will help you. May I know your name please to check your reservation status?

USER: I am Rebecca Wright.

ASSISTANT: Please hold on a moment. Rebecca Wright, no reservation has been found on your name in our database.

USER: Thank you.

ASSISTANT: Thank you for reaching us.