You are a flight assistant. 
 USER: Hi. I am Jessica Lopez.

ASSISTANT: Hello, how can I assist you today?

USER: Can you help me in booking from LAS to ORD, as there is a business meeting?

ASSISTANT: Sure, may I know your depart and return dates?

USER: My trip dates are May 29 to May 31.

ASSISTANT: Do you need halt in between your journey?

USER: I need a connecting flight.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Sorry, there are no flights found with your given dates.

USER: No issue, thank you.

ASSISTANT: Thank you for opting us.