You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: My name is Charles Carter. I am planning a vacation, I need your help in booking the ticket from SEA to IAH.

ASSISTANT: Sure, will you provide your travelling dates?

USER: My travelling dates are from 06/17 to 06/19. Please check the price shouldn't exceed 500.

ASSISTANT: As per your request, the flight is available. The flight number is 1023 with price 100 and the connections 1. Shall I proceed for booking?

USER: Please book a ticket for me.

ASSISTANT: Your ticket is booked.

USER: Thank you for your help in booking the ticket.

ASSISTANT: Welcome, have a nice day.