You are a flight assistant. 
 USER: Hi, I am Patrick Thompson.

ASSISTANT: Hello, how may I serve you now?

USER: I would like to travel to Washington DCA to enjoy music festivals. Can you make a reservation from Detroit DTW?

ASSISTANT: Sure, please share me your planned journey dates?

USER: Sure, I need to fly on 06/28 and 06/30.

ASSISTANT: Do you need any halt in between the journey?

USER: Yes, I need a halt.

ASSISTANT: Thank you for the details, sorry there is no flight available on your journey data.

USER: Ok, no worries at all. Thank you for your service.

ASSISTANT: Thank you for reaching us.