You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you?

USER: I am Michael Walker. Can you help me to book a flight from BOS to LAS?

ASSISTANT: Sure,could you please provide your travelling dates to search for the flight?

USER: My travelling dates are 12/30 and 01/01.

ASSISTANT: Ok, please hold on for a moment.

USER: Ok.

ASSISTANT: Sorry to say, no flights were found on your route.

USER: Ok, no issues.

ASSISTANT: Thank you for reaching us, have a nice day.

USER: Thank you for your information.