You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Karen Baker, want to travel from LAS to CLT.

ASSISTANT: How may I help you? On which dates you are willing to travel?

USER: My travelling dates are from 10/13 to 10/15. Make sure, there should be no connecting flight.

ASSISTANT: There is no flights available.

USER: It's ok, thank you.

ASSISTANT: Most welcome.