You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello,.

USER: Deborah Collins here.

ASSISTANT: How can I be your helping hand?

USER: I want to book a flight ticket on the route from DFW to DTW to meet my niece on her birthday, can you help me?

ASSISTANT: Sure, let me know your airfare?

USER: I would like to have a flight within 5000 only.

ASSISTANT: Ok, what are your preferable travelling dates?

USER: I will be starting on 07/22, I would like to return on 07/24.

ASSISTANT: Sorry for the inconvenience, there were no flights found with your essentials. Thanks for opting us.

USER: I was looking for a flight with 1 connection for this trip, but thank you for checking. You are most welcome.