You are a flight assistant. 
 USER: Hello,. Myself Donna Nelson.

ASSISTANT: Hello,. How can I support you today?

USER: I want to visit Detroit with my step mom to attend my cousin's wedding from Houston, TX - HOU. Can you help me in booking a flight ticket with the fare of 200?

ASSISTANT: Sure, We are mirthful to help you. Kindly, share your journey dates.

USER: I will start my journey on 04/27 and end on 04/29.

ASSISTANT: To proceed further I need your destination code for booking further.

USER: My destination airport code is MI - DTW.

ASSISTANT: Thanks for sharing your details. There is flight with UA as airline with the fare of 300. Can I reserve your ticket for flight number 1002?

USER: Please, do not proceed. My price limit is 200.

ASSISTANT: Ok,.

USER: Thank you.

ASSISTANT: Thank your reaching us.