You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Patrick Davis.

ASSISTANT: How may I help you out?

USER: Can you help me in booking from BOS  to DCA, as there is a business meeting to attend?

ASSISTANT: Sure, I will help you in booking the ticket. May I know your travelling dates please?

USER: My trip dates are Jul 7 to Jul 9.

ASSISTANT: Do you need any specifications?

USER: I need a connecting which return in afternoon.

ASSISTANT: Can I know your preferences?

USER: I need a specifications which are mentioned above.

ASSISTANT: There is a flight with connection 1 and price 200, can I proceed?

USER: You can book it.

ASSISTANT: Ok, your ticket has been booked with flight number 1028.

USER: Thank you.

ASSISTANT: Thank you for reaching us.