You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Angela Roberts.

ASSISTANT: How can I help you?

USER: Can you find a flight on these days 05/14 and 05/16?

ASSISTANT: May I know your airport codes please?

USER: Sure, my locations will be DCA to IAD.

ASSISTANT: Just a moment please.

USER: Ok.

ASSISTANT: There is a flight with single connection, can I proceed for booking in Delta airlines?

USER: Proceed with booking.

ASSISTANT: Your booking is done in 1027 flight.

USER: Thanks for your help.

ASSISTANT: Thank you for choosing us.