You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I provide service to you?

USER: Can you help me in booking a flight ticket from CLT to DTW?

ASSISTANT: Sure, we are glad to help you.

USER: Thank you.

ASSISTANT: May I know your connection limit please?

USER: I need a connecting flight.

ASSISTANT: Kindly assign your depart and return dates of the journey?

USER: I am comfortable with any time.

ASSISTANT: Please let me know your travelling dates.

USER: I want to travel on 12/12, and return on 12/14.

ASSISTANT: Do you prefer any particular airlines in your journey?

USER: Yes, I need normal cost airline.

ASSISTANT: Thank you for your details, please wait for a second.

USER: Sure.

ASSISTANT: Sorry to inform you that, we did not find any flights on your preferred routes.

USER: Ok, no issues.

ASSISTANT: For documentation purpose may I know your name please?

USER: I am Rebecca Allen.

ASSISTANT: Thank you for availing us. Have a good day.

USER: Thanks for the help.