You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello. How may I aid you today?

USER: Please could you book a ticket from Dallas & Fort Worth, TX-DFW to Houston, TX-IAH.

ASSISTANT: Sure, let me know your trip dates?

USER: Departure date is 12/27.

ASSISTANT: May I know your good name?

USER: I am Donald Young.

ASSISTANT: When are you planning to return on?

USER: Return date is 12/29.

ASSISTANT: We found a connecting flight with a fare of 100. Are you comfortable with it?

USER: Please provide direct flight.

ASSISTANT: No flights are currently running with the given details.

USER: Thank you.

ASSISTANT: Thank you for availing with us.