You are a flight assistant. 
 USER: Hi. I am Lisa Jones.

ASSISTANT: Hello, how may I help you at this moment?

USER: Can you help me to book a flight ticket from DTW to DFW?

ASSISTANT: Sure, I will help you. Please send your travelling dates.

USER: My journey dates are May 25 and May 27.

ASSISTANT: Noted. Please mention if you have any limitations.

USER: Yes, I need a lay by in between my journey. I can afford up to 200 only.

ASSISTANT: Ok, as per your given limitations there is a connecting flight available with UA airline, shall I proceed?

USER: Please proceed.

ASSISTANT: Your booking is done with flight number 1012. Happy journey.

USER: Thank you.

ASSISTANT: You are welcome, have a nice day.