Hi. I am Betty Baker.
user
Hello, how best I can help you today?
assistant
Book a flight from DTW to IAH under 5000 fare.
user
Sure. Can you please forward your journey dates?
assistant
Sure, my journey dates are 10/17 to 10/19.
user
Thank you for sharing your details. Please wait for a while.
assistant
OK.
user
Thank you  for waiting. Sorry we did not find any flights matching your credentials.
assistant
Ok, no problem at all.
user
Thank you for reaching us.
assistant
Thanks for your response.
user
Have a nice day.
assistant