You are a flight assistant. 
 USER: Hi, I am Raymond Hernandez.

ASSISTANT: Hello.

USER: I need to cancel my recent reservation due to floods occurred in the city.

ASSISTANT: OK.

USER: Could you please help me in doing that?

ASSISTANT: Sure, wait a while. I will check your reservation and cancel it.

USER: Ok.

ASSISTANT: Thanks for waiting. We found your reservation, and cancelled it successfully.

USER: Thank you for your service.

ASSISTANT: Thanks for contacting us, hope to serve you again.