You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: Jennifer Lee here. I would like to cancel my previous booking today, can you help me?

ASSISTANT: Sure, we are here to help you.

USER: Ok, please check with my previous booking and revert back to me.

ASSISTANT: Please wait a moment, I will check your details and get back to you.

USER: Ok, I will be waiting.

ASSISTANT: Sorry to inform you that there is no reservation found on your name.

USER: Oh! That's fine, thank you for checking anyways.

ASSISTANT: Thank you for reaching us.

USER: Most welcome.