You are a flight assistant. 
 USER: Hello. Rebecca Young here.

ASSISTANT: Hello, how may I aid you?

USER: I need to have a flight ticket booking from AUS to DCA in the month of May to attend a workshop in Washington. Can you please help me with my flight ticket booking?

ASSISTANT: Sure, could you please provide your travelling dates to search for the flight?

USER: Ok, I am planning to leave my location on 05/24 and please book my return ticket also on 05/26.

ASSISTANT: Just hold on a moment, I will check flight availability in this route.

USER: Ok, take your time.

ASSISTANT: May I know your connection preference to proceed further?

USER: I will prefer single connection for my journey. Please check for it.

ASSISTANT: Sorry to say, no connected flights were available on your route.

USER: Oh! Sad to hear that. Anyway, I will find another alternative to complete my journey. Thank you for the information.

ASSISTANT: Thank you for reaching us, have a nice day.