You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Susan Robinson here.

ASSISTANT: How may I help you out?

USER: I want to attend a Marriage in Philadelphia. Can you please help me for booking the flight ticket?

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

USER: My travelling dates are 05/16 and 05/18.

ASSISTANT: Can I know you airport codes too?

USER: My airport codes are CLT and PHL.

ASSISTANT: Do you have any connection limit?

USER: I would prefer single halt.

ASSISTANT: Can I know your preferences?

USER: I don't have any preferences.

ASSISTANT: There is a flight with connection 1 and price 300, can I proceed?

USER: Please proceed for booking the flight ticket.

ASSISTANT: Ok, your ticket has been booked with flight number 1002.

USER: Thanks for helping me.

ASSISTANT: Thank you for reaching us.