You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: Myself Sarah Taylor. Due to some problems my trip was cancelled so can you please cancel my previous reservation?

ASSISTANT: Sure, give me a minute.

USER: Ok, thank you for your positive response.

ASSISTANT: Sorry, there is no reservation found under your name.

USER: Oh! It's ok no problem.

ASSISTANT: Thank you for reaching us.