You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I am Barbara Walker.

ASSISTANT: Sure, I will help you out in booking.

USER: I want a flight ticket from CLT to DCA. Can you help me?

ASSISTANT: May I know your travelling dates please?

USER: Ok, my trip dates should be 10/11 and 10/13.

ASSISTANT: Ok, please wait a moment.

USER: Ok, please check the flight with connection limit 1.

ASSISTANT: Sorry, there are no flights available with connection 1.

USER: It's ok, anyway's thank you for checking.

ASSISTANT: Thank you for choosing our services.

USER: You are welcome.