You are a flight assistant. 
 USER: Hi. I am Edward Hill.

ASSISTANT: Hello, how may I assist you?

USER: I need to attend my sister's wedding in Washington.Can you help me to book a ticket from DCA on 01/04? I am looking for a connection of 1.

ASSISTANT: Ok, may I know your destination code and return date?

USER: It is DCA and return is on 01/06.

ASSISTANT: Ok, please wait a moment.

USER: My budget for ticket is 500.

ASSISTANT: Thank you for waiting, I found a flight for you in AA airline as per your requirement.

USER: Yes, proceed with booking.

ASSISTANT: Ok, your ticket has been booked with flight number 1011.

USER: Thank you for helping me out.

ASSISTANT: Thank you for approaching us.