You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you?

USER: I am Angela Turner, want to travel from IAD to EWR. Please help me in booking my ticket.

ASSISTANT: Sure, I am here to help you out. May I know your travelling dates please?

USER: Sure, thank you and my travelling dates are from 04/23 to 04/25.

ASSISTANT: Wait for a while please.

USER: Sure.

ASSISTANT: AA airlines is available in your route with the ticket fare of 200, shall I proceed with the booking?

USER: That's perfect, please proceed.

ASSISTANT: Your ticket is booked with the flight number 1004.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.