You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: Larry Jones here, I need a direct flight for my journey. Can you help me?

ASSISTANT: May I know your desired travel dates please?

USER: My travelling dates will be from 07/04 to 07/06.

ASSISTANT: Can i know your preferred airport codes please?

USER: My airport codes for this journey will be from LAS to BOS.

ASSISTANT: There is no flight on your desired travel dates.

USER: Ok, no issues with it. Thank you for checking anyways.

ASSISTANT: Thank you for opting us.

USER: Most welcome.