You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Helen Gonzalez here. I was by mistakenly made a reservation earlier in this week. So I want to cancel my reservation, can you please help me for that?

ASSISTANT: Sure, please wait a moment I will check your details and let you know.

USER: Ok, take your time.

ASSISTANT: Sorry Helen, we did not find any reservation on your name.

USER: Oh! I think my cousin had cancelled my reservation. Anyway, thank you for the information.

ASSISTANT: Thank you for connecting with us, have a good day.

USER: Welcome.