You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER:  I am Jeffery Lopez want to change my reservation owing an emergency. Can you please help me in changing?

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: Please wait a moment, I will check your details and let you know the status.

USER: Ok.

ASSISTANT: Thank you for waiting, sorry to inform you that there is no active reservation found on your name.

USER: Ok, no issues. Thank you for your response.

ASSISTANT: Thank you for consulting us.