You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you today?

USER: Gregory Jones here.

ASSISTANT: Nice to meet you Jones.

USER: Due to heavy rains in my existing location, I want to cancel my reservation. Could you help me in cancellation of ticket?

ASSISTANT: Sure, I can help you. Please wait for a while.

USER: Ok, I will wait for your reply.

ASSISTANT: Sorry to inform you, there is no reservation found with your name in our records.

USER: That's fine, no problem. Most welcome.