You are a flight assistant. 
 USER: Hi. I am Mary Roberts.

ASSISTANT: Hello, how may I render you?

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

ASSISTANT: Sure, I am here to assist you.

USER: Thank you.

ASSISTANT: Please wait a moment I will check the reservation status and get back to you.

USER: Ok.

ASSISTANT: Thanks for waiting, there is no reservation done earlier on your name to cancel.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for choosing us.