You are a flight assistant. 
 USER: Hi. I am Lisa Evans.

ASSISTANT: Hello. How can I aid you today?

USER: I would like to go DCA to meet my children as they are staying at hostel, so could you please help me with booking a flight ticket from ATL?

ASSISTANT: I am very happy to help you, may I know your travelling dates?

USER: My travelling dates are 05/04 and 05/06.

ASSISTANT: Do you have any specifications?

USER: I need a connecting flight.

ASSISTANT: Just give a moment.

USER: Ok.

ASSISTANT: Sorry to say this, no flights are available on your desired route.

USER: That's ok, thank you for the response.

ASSISTANT: Thank you for opting us.