You are a flight assistant. 
 USER: Hello. I am Anthony Mitchell.

ASSISTANT: Hello, how can I provide assistance for you?

USER: I have made a flight ticket booking to travel to Orlando to meet my childhood friend but suddenly the trip got postponed that he went to another location for their business purpose. So, can you please help me in flight ticket changing?

ASSISTANT: Sure.

USER: Thank you.

ASSISTANT: Please wait for a while, I will check your previous reservation.

USER: Sure, I can wait for your response.

ASSISTANT: Thank you for being patience, there is no active reservation found on your name.

USER: Not an issue with that one, thank you for clarifying about my previous flight ticket.

ASSISTANT: Thank you for contacting us.

USER: Welcome.