You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Susan Baker here.

ASSISTANT: Susan Baker. How may I help you?

USER: I want to attend a Seminar in Philadelphia. Can you please help me for booking the flight ticket?

ASSISTANT: Sure, can you provide me with the genesis and terminus codes please.

USER: My airport codes are DTW and PHL.

ASSISTANT: Can you provide me with the travel dates.

USER: My travelling dates are 04/30 and 05/02.

ASSISTANT: Do you have any preferences?

USER: I would prefer single halt.

ASSISTANT: Give me a moment.

USER: Ok, I will wait.

ASSISTANT: American Airlines with flight 1001 is providing service on your route with single connection.

USER: Please proceed for booking the flight ticket.

ASSISTANT: Your ticket is booked.

USER: Thanks for helping me.

ASSISTANT: Thank you for approaching us.