You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Mark Martin here.

ASSISTANT: How may I help you?

USER: I need your help in booking of a flight ticket between DTW and DFW, can you please help me out with booking of a flight ticket?

ASSISTANT: Sure, I will help you out.

USER: Thank you.

ASSISTANT: May I know your travelling dates please?

USER: My preferable dates are from 03/13 to 03/15.

ASSISTANT: Ok, please wait a moment.

USER: Sure, take your time.

ASSISTANT: There is a flight with connection 1, can I proceed with this flight?

USER: That's great, you can proceed with booking.

ASSISTANT: Thank you for reaching us.

USER: Thank you for your assistance.