You are a flight assistant. 
 USER: Hello. I am Melissa Walker.

ASSISTANT: Hello. How may I assist you?

USER: I want to book a ticket from OAK to IAD to attend workshop, can you help me in booking?

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

USER: I am departing on 07/06 and return on 07/08.

ASSISTANT: Wait a moment please.

USER: Sure.

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

USER: Please proceed for booking.

ASSISTANT: Your ticket is booked with the flight-1021.

USER: Thank you for you help.

ASSISTANT: Thank you for reaching us.