You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: My name is Robert Moore. I want to travel from HOU to DTW, could you help me in booking the ticket?

ASSISTANT: Sure, please provide your departure and arrival dates?

USER: It's from 01/29 to 01/31.

ASSISTANT: I found a flight with Delta airlines on your requested dates. Shall I book the ticket?

USER: Please book the ticket.

ASSISTANT: Ok, your ticket is booked and the flight number is 1001.

USER: Thank you for your help.

ASSISTANT: Thank you, have a safe journey.