You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I oblige you today?

USER: I would like to visit Public Library at Detroit to collect some information from old newspapers, which helps me to write an article about corruption. Can you help me for booking a ticket?

ASSISTANT: Sure, we are ecstatic to aid you for booking. How much do you want to spend on your ticket?

USER: I can spend up to 1000.

ASSISTANT: From where do you want to start your journey?

USER: I want to start my journey from Phoenix, AZ - PHX.

ASSISTANT: Ok, may I know planned dates of your journey for booking?

USER: Sure, I will depart on 05/17 and return on 05/19.

ASSISTANT: Please specify the Detroit airport code.

USER: The Detroit airport code is MI - DTW.

ASSISTANT: Thanks for your valuable information, please be on hold.

USER: Sure, I will wait.

ASSISTANT: Thank you for your patience, we found a flight in Delta airline with a fare of 200 which matches to your criterion. Shall I proceed for booking with a halt?

USER: Sure, you can proceed for booking on the name of Nancy Rodriguez.

ASSISTANT: Sure. Your E-ticket has been generated, it will sent to your registered E-mail Id shortly. The flight number is 1026.

USER: Ok, Thanks for booking.

ASSISTANT: Thank you for choosing our service. Have a good day.