You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Dorothy Wilson here.

ASSISTANT: How may I help you?

USER: Can you please reserve a flight ticket from PHL to DCA for my business meeting?

ASSISTANT: Ok, may I know your journey dates?

USER: Sure, I am planning to leave on 09/27 and please book my return ticket on 09/29. Please make sure that flight should be with connection 0.

ASSISTANT: Sorry, there is no direct flight for you on your route. Thanks for choosing us.

USER: Oh! Sad to hear that. Anyway, thank you for the information.