You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you today?

USER: I am Kimberly Lee. Actually, there is a problem with my travelling dates. Can you help to cancel my ticket?

ASSISTANT: Sure, I can help you with that. Please allow me a moment to check the details.

USER: Please check the details.

ASSISTANT: Kimberly, I have checked and see that there is no reservation found under your name.

USER: That's fine for me. Thank you for your response.

ASSISTANT: You are welcome. Thank you for contacting us.