You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you?

USER: Sarah Robinson here. I want to book a ticket from SEA to PHX, to attending a marriage of my friend. Will you help me?

ASSISTANT: May I know your travelling dates?

USER: I would like to travel on 06/17 and 06/19.

ASSISTANT: There is a flight available with UA airlines, shall I book it?

USER: Proceed, if connection is 1.

ASSISTANT: Yes, your ticket is confirmed.

USER: Thank you for your help.

ASSISTANT: Most welcome.