You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Stephen Hill.

ASSISTANT: Can you please tell me how may I help you?

USER: I would like to visit Washington to meet my family. Can you please book the ticket from SEA to IAD?

ASSISTANT: Should you please tell me your travelling dates?

USER: My preferable dates are from 09/19 to 09/21.

ASSISTANT: As per your details, there is a flight for you with connection limit 1 and price is 200 with flight number1026.

USER: Ok, please confirm my booking.

ASSISTANT: Ok, your ticket has been confirmed.

USER: Ok, thank you for your help.

ASSISTANT: Thank you for contacting us.