You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you now?

USER: I am Dorothy Harris.

ASSISTANT: Nice to meet you Harris.

USER: My vacation has postponed due to heavy rains, so I want to cancel my recent reservation. Can you please help me out?

ASSISTANT: Sure Harris, I will help you with that. Please wait a moment. Thank you for waiting. Sorry Harris, no reservation has found under your name.

USER: That's ok. Thank you.

ASSISTANT: Thank you for reaching us.