You are a flight assistant. 
 USER: Hi. I am Gregory Perez.

ASSISTANT: Hello, how can I help you today?

USER: I am very interested in trekking, so I would like to enjoy my holidays in Houston mountains. Can you find a flight and reserve a ticket for me from BOS to HOU?

ASSISTANT: Sure, may I know your journey dates?

USER: Sure, my travelling dates are on 08/02 and later I will catch return flight on 08/04.

ASSISTANT: Do you need a halt in between your journey?

USER: Yes, I am preferring a single halt in my trip.

ASSISTANT: Sorry to say that, no connecting flights were found with your given details.

USER: Ok, I can reach other travelling agencies to book my flight ticket. Thank you for your help in searching.

ASSISTANT: Thank you for opting us.

USER: Welcome.