You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, How can I help you?

USER: I am Debra Thomas. Can you please help me with booking a flight ticket from DEN to DFW?

ASSISTANT: Sure, I will help you.

USER: Thank you.

ASSISTANT: May I know your travelling dates?

USER: I want to travel on 02/15, and need to catch return flight on 02/17.

ASSISTANT: Do you have any preferences?

USER: I need a connecting flight.

ASSISTANT: Please wait.

USER: Sure.

ASSISTANT: Thanks for waiting.

USER: Ok.

ASSISTANT: We found a direct flight in Frontier airline, Shall I proceed?

USER: Yes, please proceed.

ASSISTANT: Your ticket has been booked with flight number 1000 having price 100.

USER: Thanks for the help.

ASSISTANT: Thank you.