You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Shirley Moore here.

ASSISTANT: What service you are looking for?

USER: Reserve a flight ticket for me that is from DTW to HOU.

ASSISTANT: Sure. What are your departure date and return date?

USER: My travelling dates for journey are 06/16 to 06/18.

ASSISTANT: Ok, do you have any other requirements?

USER: look for single connecting flight.

ASSISTANT: Ok. I will check the fight,  please wait a minute.

USER: Sure.

ASSISTANT: There is a flight with single connection, the airlines is UA and the price is 200. Can I confirm your ticket?

USER: Sure, you can confirm the flight ticket.

ASSISTANT: Ok, your ticket is confirmed with the service number 1004.

USER: Thank you.

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