You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

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

ASSISTANT: Ok.

USER: Can you help me?

ASSISTANT: Sure, I will help you. Let me know your name, please.

USER: Andrew Lewis here.

ASSISTANT: Please, standby.

USER: Sure.

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

USER: No issue, Thanks for the information.

ASSISTANT: Thank you for approaching us.