You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I want to cancel my recent reservation, due to heavy rains in my home town. Can you please help me?

ASSISTANT: Yes, can you tell me your name?

USER: Sure, please check the ticket with the name Gregory Walker.

ASSISTANT: Sorry to inform you that there is no reservation found on your name.

USER: No issue, anyway thank you for checking.

ASSISTANT: Thank you for reaching us.