You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you at this minute?

USER: I am planning for a refreshment trip in this week, can you help me to book a flight from my current location LAS?

ASSISTANT: Sure, I am happy to help you with that. Can I know your planned trip dates?

USER: I would like to start my journey on Sept 06 and I will be return on Sept 08.

ASSISTANT: Do you have any other specifications?

USER: I want to meet my friends, so please book a flight ticket to BOS.

ASSISTANT: May I know your name?

USER: My name is Susan Hill.

ASSISTANT: Sorry to inform you that, there are no flight's available based on your travelling dates.

USER: Ok, no issues with that.

ASSISTANT: Thank you for reaching us.

USER: Thank you for your service.