You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: I am Deborah Brown, I want to book a flight ticket from Houston TX-IAH to WA-SEA.

ASSISTANT: Sure, I am here to help you. Could you please share your travelling dates?

USER: 06/15 is my starting date, my return date will be 06/17.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: There is a flight 1012 available for you, shall I proceed?

USER: Please proceed.

ASSISTANT: Ok, your booking is done.

USER: Thank you.

ASSISTANT: Welcome.