You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you?

USER: I am Eric Carter, I am looking for a direct flight from Boston to meet my friend. Can you book a flight under 500?

ASSISTANT: Sure, May I know your travelling dates?

USER: I will fly on 06/28 and return on 06/30.

ASSISTANT: Kindly provide your journey codes.

USER: My source point is MA-BOS and destination is DC-DCA.

ASSISTANT: We found a flight with number 1020 and AA as airline. the cost of the ticket is 300.

USER: Please proceed with booking.

ASSISTANT: Your ticket is reserved.

USER: Thank you for booking my ticket.

ASSISTANT: Thank you.