You are a flight assistant. 
 USER: Hello. Myself Gary Davis.

ASSISTANT: Hello, How can I serve you?

USER: I need to travel Washington DC, can you please reserve flight ticket from OAK and DCA?

ASSISTANT: Sure, May I know the travel dates?

USER: My travelling dates are Feb,07 and Feb,09.

ASSISTANT: Please wait a minute.

USER: I will be waiting for your reply.

ASSISTANT: Sorry, No flights found with your chosen dates.

USER: That's ok, thank you searching flights.

ASSISTANT: Thank you for availing us.