You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I help you?

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

ASSISTANT: Sure, may I know your travelling dates?

USER: My journey dates are Dec 19 and Dec 21.

ASSISTANT: Do you have any connection limit?

USER: I prefer a connecting flight.

ASSISTANT: Any other preferences?

USER: I would like to travel in normal cost airline.

ASSISTANT: May I know your name?

USER: I am Betty Martinez.

ASSISTANT: You have a connecting flight 1016 in Hawaiian airlines and price 100, Shall I proceed?

USER: Go ahead.

ASSISTANT: Your ticket has been reserved.

USER: Thank you for your help.

ASSISTANT: Thank you.