You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I serve you today?

USER:  Please help me with the flight ticket modification which I had done recently?

ASSISTANT: Sure, I will help me with that.

USER: Ok, thank you.

ASSISTANT: May I know your good name please?

USER: My name is Larry Michell.

ASSISTANT: Please wait for a while.

USER: Ok, please take your time.

ASSISTANT: Thanks for being patient, there is no active reservation found on your name.

USER: Ok, that is not a problem. Thank you for the information.

ASSISTANT: Thank you for approaching us.