You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I am Rachel Smith. I want to cancel my recent reservation due to heavy rainfall, can you help me in that?

ASSISTANT: Sure, I will help you. Please wait a moment, I will check the reservation list.

USER: Sure.

ASSISTANT: We found a reservation on your name, shall I cancel your reservation?

USER: You can cancel it.

ASSISTANT: I have cancelled your reservation.

USER: Thank you.

ASSISTANT: Thank you.