You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you at this moment?

USER: My name is Debra Thompson. Please find a flight for me to travel Detroit - DTW from Denver - DEN.

ASSISTANT: Sure, I will help you with that. Could you please mention your preferable travel dates?

USER: I want to takeoff on July 25th and return back on July 27th.

ASSISTANT: Do you need any specific depart and arrival time for this trip?

USER: I don't have any depart time preference but I do want to return back in the evening.

ASSISTANT: Are you ok with connecting flight or you need a direct flight?

USER: Yes, I am fine with a connecting flight.

ASSISTANT: Do you have any another specifications?

USER: No.

ASSISTANT: Sorry, no flights are available in this route as per your requested dates.

USER: No worries, thank you anyway.

ASSISTANT: Thank you for reaching us.