You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: My name is Elizabeth Adams. I want to visit space needle in Seattle, could you help me in booking the ticket?

ASSISTANT: Sure, please provide the travelling details?

USER: It's from DTW to SEA. The dates of travel are from 05/15 to 05/17.

ASSISTANT: There is a flight 1000 available on your requested dates. Shall I proceed?

USER: Please book the ticket.

ASSISTANT: Ok, your ticket is booked.

USER: Thank you for helping me out.

ASSISTANT: Thank you for reaching us.