You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Due to an emergency, I have to change my flight ticket booking. So, can you please help me in flight ticket changing?

ASSISTANT: Ok, I will check your ticket status. Can you please tell me your good name?

USER: Thank you and my name is Jeffrey Martinez.

ASSISTANT: Ok, please hold on for a minute.

USER: Sure.

ASSISTANT: Sorry to inform you, there is no reservation found with your name in our database.

USER: Ok, no problem with that one. I can check it later, thank you for your search.

ASSISTANT: My pleasure. Thank you for consulting us. Have a nice day.

USER: You are most welcome.