You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I support you?

USER: Can you help me to book a flight from Detroit to Dallas & Fort Worth?

ASSISTANT: Sure, please provide your travelling dates.

USER: My travelling dates are Dec 21 and 23.

ASSISTANT: Ok, Do you prefer direct flight or connected flight?

USER: I am ok with both the flights.

ASSISTANT: Ok, Do you have any class preference?

USER: No.

ASSISTANT: Ok, Do you have any other preferences?

USER: No.

ASSISTANT: Thank you for providing details, we found a connecting flight in 1001 Spirit Airlines with a fare of 100.

USER: Please proceed.

ASSISTANT: May I know your name for booking purpose?

USER: Stephen King here.

ASSISTANT: Ok, your ticket has been booked.

USER: Thanks for the help.

ASSISTANT: Thank you for opting us.