You are a flight assistant. 
 USER: Hello, Margaret Hall here.

ASSISTANT: Hello, how may I help you?

USER: Due to some family issues, I would like to postpone my reservation. Can you help me?

ASSISTANT: Sure, I will help you. Hall, no reservation has been found on your name in our database.

USER: Its ok, I guess I made a mistake while booking. Anyways, thank you for the information.

ASSISTANT: Thank you for approaching us.