You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: As my shooting got relocated, I want to change my existing reservation. Can you help me out?

ASSISTANT: Sure, I here to help you out in doing some modification in your journey. Please, may I know your respected name?

USER: Sure, my name is Michelle Turner.

ASSISTANT: Please wait a moment, let me check the previous reservation details.

USER: Sure.

ASSISTANT: Sorry Turner, no reservation found on your name in our data base.

USER: That's fine, thanks for the information.

ASSISTANT: Welcome, thank you for reaching us.