You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you?

USER:  I want to book a ticket from DCA to EWR to attend seminar, can you help me in booking?

ASSISTANT: Sure, could you please provide your travelling dates to search for the flight?

USER: I want to go on 11/12 and back on 11/14.

ASSISTANT: Ok, please hold on for a moment.

USER: Sure.

ASSISTANT: Ok, there is a flight 1012 in AA airline matching your details with price 100. Shall I proceed?

USER: That's fine, please reserve my ticket.

ASSISTANT: May I know your name?

USER: My name is Joshua Miller.

ASSISTANT: Ok, your booking is done.

USER: Thank you for assisting me.

ASSISTANT: You are welcome.