You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: My name is Daniel Adams. Due to a sudden meeting with my client, my family trip is cancelled. Could you help me in cancelling the reservation?

ASSISTANT: Sure, please give me a minute. Sorry, there is no reservation found under your name.

USER: That's fine. Anyways, thank you for your time.

ASSISTANT: You are welcome.