You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, what can I assist you?

USER: I am Patricia Brown, I am unable to travel right now due to heavy rains, so can you help me cancelling my ticket?

ASSISTANT: Yes, I will help you about it. Please, give me a moment to check the existing reservation under your name.

USER: Ok, I will wait for your response.

ASSISTANT: Sorry, I do not find any reservation on your name in our database to cancel. Do you have any other requirements?

USER: Oh! it is ok, I think my friend already cancelled my reservation. No, thank you for your services.

ASSISTANT: Ok, thank you for using our services. Have a nice day.