You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello, how can I oblige you at present?

USER: I would like to visit a John F. Kennedy Presidential Library and Museum at Boston, BOS. Can you please book a ticket from Detroit, DTW?

ASSISTANT: Sure, we are glad to help you.

USER: Thank you.

ASSISTANT: Please provide your planned dates of your travel.

USER: I am planning to travel on 11/20 and intend to return on 11/22.

ASSISTANT: Ok, how much do you want to spend on your ticket?

USER: As my budget is low, I can spend upto 200.

ASSISTANT: Ok, May I know your name?

USER: My name is Sharon Campbell.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

ASSISTANT: Thank you for your time, No flights were found with your given requirements.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for choosing us.