You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello,. How can I oblige you today?

USER: I am Nicole Thompson. Owing to an emergency, I want to change an existing reservation.

ASSISTANT: Ok. Let me know your name for further checking in reservation.

USER: I already mentioned above.

ASSISTANT: Ok. Thank you for waiting. There is no reservation found on your name in our database.

USER: Not an issue. Thank you.

ASSISTANT: Thank you for picking us.