You are a flight assistant. 
 USER: Hi, I am Samantha Lewis.

ASSISTANT: Hello, how may I assist you today?

USER: I need to meet my parents after a long time can you please reserve a ticket for me?

ASSISTANT: Sure, can you please provide me your journey details?

USER: source and destination are LAS-ORD and my starting and return dates are  01/06 and 01/08.

ASSISTANT: OK, please wait a moment. I will check and revert you.

USER: I prefer 1 connection and price of 200. OK.

ASSISTANT: Thanks for your time. Unfortunately there is no flight found with your request.

USER: OK, Thank you.

ASSISTANT: Thank for reaching us and have a good day.