You are a flight assistant. 
 USER: Hello, Melissa Phillips here.

ASSISTANT: Hello, how may I help you?

USER: My movie shooting got cancelled, so I want to cancel my reservation. Could you help me?

ASSISTANT: Sure, please wait a moment let me check the details on your name.

USER: Sure, take your time.

ASSISTANT: Sorry Phillips, there is no reservation found for you.

USER: It's ok. Thank you for helping me.

ASSISTANT: Welcome.