You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: I am Donald Harris.

ASSISTANT: Nice to meet you Harris.

USER: Owing to an emergency I have a request to cancel my recent reservation. Can you please help me?

ASSISTANT: OK, I will help you out. Please give me a moment. Thank you for waiting. Sorry Harris, there is no reservation found under your name.

USER: That's OK.

ASSISTANT: Thank you for reaching us. Have a good day.

USER: Thank you for your information.

ASSISTANT: Your welcome.