You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am James Davis.

ASSISTANT: James, how can I help you?

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 will do that for you. Please wait for a while.

USER: Ok, I will wait for your reply.

ASSISTANT: James, I have not found any reservation under your name in our database.

USER: Not an issue, thank you for checking.

ASSISTANT: You are welcome and thank you for choosing us.