You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I want to attend my grand mother's house.Can you please help me in booking a ticket?

ASSISTANT: Sure,can please give me your journey dates and airport codes?

USER: Ok, my codes are from DC-IAD to CO-DEN.My dates are from 09/09 to 09/11.

ASSISTANT: Ok, wait a second.

USER: Sure.

ASSISTANT: Sure, I found a flight with flight number is 1006 and 1 connection.

USER: Ok, please book my ticket.

ASSISTANT: Sure, your ticket has been booked.

USER: Thank you for your help.

ASSISTANT: Thank you for contacting us.

USER: You are welcome.

ASSISTANT: sorry,. Can I know your good name?

USER: My name is Stephanie Carter.

ASSISTANT: Ok. Thank you.

USER: You are welcome.