You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Robert Gonzalez here.

ASSISTANT: How can I assist you today?

USER: I want to attend National book festival in Washington-IAD on 10/26, could you book a ticket for me?

ASSISTANT: Sure, will you provide your source airport code?

USER: I will stay in CLT.

ASSISTANT: Will you provide the departure date?

USER: I want to travel on 10/26 and return on 10/28.

ASSISTANT: Please give me a moment.

USER: Sure.

ASSISTANT: As per your request, there is a flight with price 100 and the connections 1. Shall I proceed for booking?

USER: You can proceed with the booking.

ASSISTANT: Your ticket is booked.The flight number is 1028.

USER: Thank you for your assistance.

ASSISTANT: Thank you for reaching us.Have a great day.