You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I be of your help?

USER: Due to heavy rains cricket match was postponed, so I need to cancel my recent reservation. Can you please cancel my reservation?

ASSISTANT: Sure, I'll help you in cancellation.

USER: Thank you.

ASSISTANT: Please let me know your name to check the reservation status.

USER: I am Dennis Rodriguez.

ASSISTANT: Give me some time.

USER: Ok.

ASSISTANT: Thanks for waiting, we did not found any reservation by this name.

USER: Ok, thank you for your information.

ASSISTANT: Thanks for opting us.