You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you now?

USER: Can you please guide me with my flight ticket modification process that the event got postponed?

ASSISTANT: Sure, I will help you with that.

USER: Thank you.

ASSISTANT: May I know your good name?

USER: Sure, my name is Samantha Taylor.

ASSISTANT: Thank you for your name, sorry there is no reservation found on your name in our system data.

USER: Ok, not a problem with that one. Thank you for your information.

ASSISTANT: Thank you for visiting us, have a have day ahead.

USER: Welcome.