You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: Janet Garcia here. I want to travel from DC-DCA to IL-ORD for attending a seminar. Can you please help me for booking the flight ticket?

ASSISTANT: Sure Garcia, I will help you out in booking. Can you please provide your travelling dates?

USER: My departure date is 12/04 and return date is 12/06.

ASSISTANT: Ok, please wait a moment.

USER: Ok.

ASSISTANT: Sorry, there are no flights found on these dates.

USER: So sad for that. Anyway, thank you for the information.

ASSISTANT: Thank you for choosing our services.