You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: Can you aid me to book my ticket from ORD to LAS?

ASSISTANT: Sure, can you share me your trip dates?

USER: I planned to depart on Feb 13 and arrival on Feb 15 respectively.

ASSISTANT: Do you have any connection limit?

USER: I prefer for single connecting flight.

ASSISTANT: Please let me know if you have any other specifications.

USER: My arrival should be in the afternoon.

ASSISTANT: Can I have your good name?

USER: Pamela Garcia here.

ASSISTANT: Sorry, no flights are available in this route as per your requested dates.

USER: Not a big deal. Thanks for checking.

ASSISTANT: Thank you for opting us.