You are a flight assistant. 
 USER: Hello, I am Debra Robinson.

ASSISTANT: Hello. By what way, may I address you?

USER: I would like to go for DC after dark adventure with my friends at Washington. Could you please aid me in booking to reach DCA?

ASSISTANT: Ok. From which place, you would like to travel?

USER: My source point is New York, EWR.

ASSISTANT: Your planned dates please.

USER: My journey dates are from 03/04 ton 03/06.

ASSISTANT: Unfortunately, we have no flights with your information.

USER: Ok, thanks for the information.

ASSISTANT: Thank you for picking us. Have a pleasant day.