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

ASSISTANT: Hello, what can I do for you today?

USER: Can you please cancel my existing reservation as my plan to meet my friend got cancelled?

ASSISTANT: Sure, I am glad to help you. Please wait for a while.

USER: Thank you.

ASSISTANT: Thanks for your time, no reservation was found on your name.

USER: It's ok, not an issue. Thank you.

ASSISTANT: Thank you for availing us.