You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I serve you today?

USER: I want to amend an existing reservation due to an emergency, can you please help me out?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: May I know your name please for further process?

USER: Sure, my name is Brenda Adams here.

ASSISTANT: Ok, please wait for a moment.

USER: Sure, I will wait.

ASSISTANT: Sorry Adams, no reservation found as per your name to change it in your database.

USER: Ok, not an issue. Thank you for your information.

ASSISTANT: Thank you for reaching us.