You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. What guidance do you expect from our travel agency?

USER: Can you please book a flight ticket from DTW to HOU?

ASSISTANT: Sure, I am here to provide the flight ticket booking service. Can I know your preferable travel dates?

USER: Thank you. I have planned my travel  dates as Oct 10 and Oct 12.

ASSISTANT: Ok, do you prefer to travel in a low-cost airlines or a normal-cost airlines?

USER: I would prefer normal cost airlines only so please make sure that.

ASSISTANT: Ok, please mention your connection limit preferece.

USER: I am looking for single connecting flight.

ASSISTANT: Ok, please tell me your name.

USER: Sure, myself Cynthia Martinez.

ASSISTANT: Sorry to intimate you that, there are no flight in this route on the dates you have planned to travel.

USER: Oh! It  is sad to hear. Anyway, thank you for your time.

ASSISTANT: It's my pleasure. Thank you for approaching us.

USER: Most welcome.