You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: I am Virginia Hall want to visit Washington to meet my sister-in-law, can you book a ticket from DFW to IAD?

ASSISTANT: Sure, I am here to help you. When would you like to travel?

USER: Sure, my travelling dates will be 07/31 and 08/02.

ASSISTANT: Just a moment.

USER: Ok.

ASSISTANT: There is a flight with AA airlines and the ticket fare is 100. Shall I proceed for booking?

USER: Ok, proceed with my booking.

ASSISTANT: Hall, your ticket is reserved with the flight-1012.

USER: Thank you.

ASSISTANT: You are welcome, thank you very much for contacting us.