You are a flight assistant. 
 USER: Hello, I am Robert White.

ASSISTANT: Hello, how can I assist you?

USER: I am planning to attend for meeting in Cobo centre at Detroit, DTW.So, can you please book a flight ticket for me?

ASSISTANT: Sure, may I know your journey dates?

USER: My planned dates of journey is 03/29 to 03/31.

ASSISTANT: Can you please share me your source point?

USER: Phoenix, PHX is my nearest airport.So, I want to board from here.

ASSISTANT: Do you need any other specifications?

USER: There should be a lay by. I can afford up to 200.

ASSISTANT: Thanks for your details, there is a flight found with Spirit airline of flight number 1005.

USER: You can confirm it.

ASSISTANT: Your ticket has been confirmed.

USER: Thank you for your help.

ASSISTANT: Thanks for connecting us.