You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: I am Andrew Robinson. Can you help me booking a flight ticket from MSP to LAS?

ASSISTANT:  Sure, can you please mention your departure and arrival dates of your journey?

USER: I will start on July, 24 and return on July, 26.

ASSISTANT:  Sure, is there any another specifications on your trip, so that I can book a ticket as per your wish?

USER: I need a break in my journey.

ASSISTANT: Sorry, there is no flight found with your requirement.

USER: No problem, thank you for the information.

ASSISTANT: Welcome, thank you for reaching us.