You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: Due to an emergency, I want to change my reservation.

ASSISTANT: Ok.

USER: Can you help me?

ASSISTANT: Sure, I am here to help you. May I know your name to check reservation?

USER: Kimberly Wright here.

ASSISTANT: Please, wait for a while.

USER: Ok.

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

USER: No problem, Thanks for the information.

ASSISTANT: Thank you for reaching us.