You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: James Jackson here.

ASSISTANT: What help can I do for you?

USER: Due to heavy rains in my travel location I would like to cancel my reservation, so can you please help me out with cancelling of reservation?

ASSISTANT: Yes, I am here to help in your cancellation.

USER: Thank you.

ASSISTANT: Let me check in our data base, give me a moment.

USER: Sure, take your time.

ASSISTANT: Thank you for waiting.

USER: No problem.

ASSISTANT: I am sorry that, there is no ticket previously found on your requested name to cancel it.

USER: Oh! I think my cousin had cancelled my reservation.

ASSISTANT: Thank you for communicating us.

USER: Anyway, thank you for the information.

ASSISTANT: Have a nice day.

USER: Welcome.