You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: I am Frank Lopez. I want to cancel my reservation as my seminar got cancelled due to heavy rain. Can you help me with that?

ASSISTANT: Sure, please hold on.

USER: Ok.

ASSISTANT: We found a reservation. Shall I cancel?

USER: Yes, please cancelled it.

ASSISTANT: Your reservation has been cancelled.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.