You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you today?

USER: I made a reservation earlier to attend a family meeting but due to some issues it has been postponed. Can you help me with changing my reservation?

ASSISTANT: Sure, I will help you to change your reservation.

USER: Thank you.

ASSISTANT: May I know your good name?

USER: I am Stephanie Turner.

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

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

ASSISTANT: Thank you for visiting us.