You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: Can you help me to book a flight ticket from ORD to LAS?

ASSISTANT: Sure, I will help you. Can you please share me your travelling dates?

USER: My travelling dates are Sept 23 and Sept 25.

ASSISTANT: Ok, please mention your name.

USER: Myself Jeffrey Clark.

ASSISTANT: Ok, do you have any connection limit?

USER: Yes, I am looking for a connecting flight.

ASSISTANT: Sorry, no flights are available on your route.

USER: No issue, I will go with other agency. Anyway thank you for checking.

ASSISTANT: Welcome, have a nice day.