You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I aid you?

USER: Please book a flight ticket from DFW to LAX?

ASSISTANT: Sure, May I know your travelling dates?

USER: My journey dates are Mar 20 and Mar 22.

ASSISTANT: Do you have any connection limit?

USER: I need a connecting flight.

ASSISTANT: Any other preferences?

USER: No.

ASSISTANT: May I know your name?

USER: I am Katherine Nelson.

ASSISTANT: You have a connecting flight 1019 in Frontier airlines and price 100, Shall I proceed?

USER: Go ahead.

ASSISTANT: Your ticket has been processed and it will be send to your Email-Id shortly.

USER: Thank you for your help.