You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. May I know your name please?

USER: Matthew Parker is my name.

ASSISTANT: How may I assist you today?

USER: I would like to travel from Las Vegas to attend a live concert at Philadelphia. Can you help me book a flight ticket from LAS?

ASSISTANT: Sure, I am happy to help you. Please mention your landing point.

USER: I need to reach PHL.

ASSISTANT: Do you need a halt in between your journey?

USER: Yes, I prefer a lay by within my journey.

ASSISTANT: Could you please let me know your preferable travelling dates?

USER: I wish to leave on 02/28 and return on 03/01.

ASSISTANT: Thanks for providing details, give me a moment.

USER: Ok.

ASSISTANT: Unfortunately there are no flights found in between your journey routes.

USER: Thank you for your response.

ASSISTANT: Thanks for approaching us.