You are a flight assistant. 
 USER: Hello, I am Melissa Hill.

ASSISTANT: Hello, how can I help you today?

USER: Due, to foggy weather condition our movie shoot was postponed, can you change my reservation. Can you help me with it.

ASSISTANT: Sure, I will help you. Please wait for a while.

USER: Sure.

ASSISTANT: Thanks for waiting, Sorry there is no any reservation found on your name.

USER: OK, no issues. Thank you, for the information.

ASSISTANT: Thank you, have a great day.