You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Alexander Taylor.

ASSISTANT: Ok Alexander, how can I be a help for you?

USER: I want to visit Independence Hall which is located in Philadelphia PHL.

ASSISTANT: Ok Alexander, can you please let me know from where you are willing to start your trip?

USER: My source code is Denver DEN.

ASSISTANT: Could you please tell me your dates of travel?

USER: I would like to travel in the dates of 08/29 to 08/31 respectively.

ASSISTANT: Ok Alexander, can you please give me some time to search for the availability of flight for you.

USER: Sure, take your time.

ASSISTANT: Flight 1007 is available from DEN which satisfies all your requirements, so shall I confirm the reservation with JetBlue airlines?

USER: Please book the ticket for me.

ASSISTANT: Ok Alexander, I have booked your ticket successfully.

USER: Thank you for your help.

ASSISTANT: Thank you, hope you enjoy your trip.