You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you today?

USER: I need to book a ticket from Phoenix to Los Angeles.

ASSISTANT: Sure, let me know your travelling dates?

USER: Travelling dates are from July, 27 to July, 29.

ASSISTANT: May I know your airport codes?

USER: Airport codes are PHX and LAX.

ASSISTANT: Do you have any connection limit?

USER: I would be comfortable with single stop over.

ASSISTANT: Is there any other specifications?

USER: I prefer to fly in a normal-cost airlines.

ASSISTANT: Can I know your name?

USER: My name is Kenneth Clark.

ASSISTANT: We found a Hawaiian airline with flight number 1029 and fare 200 with class is economy. Shall I proceed with booking?

USER: Please book a flight.

ASSISTANT: Your flight ticket has been confirmed. Thank you.