You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: For a safe side I booked two  flight tickets in two different dates but I want to cancel one ticket, will you help me?

ASSISTANT: Sure, may I know your good name please?

USER: My name is Ronald Jackson.

ASSISTANT: Sorry, no reservation found Jackson.

USER: It's ok.

ASSISTANT: Thank you for reaching us.

USER: Thank you for your quick search.