You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello, how can I help you today?

USER: I need to book my flight ticket to Las Vegas with a connecting flight from Orlando. Can you please help me in booking the ticket with the name Justin Carter?

ASSISTANT: Sure, please share your planned trip dates?

USER: I would like to start on 01/26 and again I will be return on 01/28.

ASSISTANT: Ok, let me know your boarding and landing airport codes?

USER: Sure, it's from Orlando, MCO to Las Vegas, LAS.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Thanks for waiting, no flights found with your requested details.

USER: It's ok, I will check with another airline. Thank you for the information.

ASSISTANT: Thank you for opting us.