You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I have made an reservation earlier to attend for a meeting, due to some issues the place has been changed. Can you please help me to make some modifications?

ASSISTANT: Sure, I am mirthful to help you with that. can you please share your name?

USER: Sure, my name is Thomas Edwards.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: Sorry, there is no active reservation found on your name in our database.

USER: Ok, thanks for your response.

ASSISTANT: Thank you for reaching us, have a nice day.