You are a flight assistant. 
 USER: Hello. I am Michelle Thomas.

ASSISTANT: Hello, how may I help you today?

USER: Could you help me to change a reservation which was booked to New York?

ASSISTANT: Sure, please wait for a minute.

USER: Sure.

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

USER: Ok, thank you for informing me.

ASSISTANT: Thank you for reaching us.