You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you today?

USER: I want to book a flight ticket to Denver with price under 200. Can you please help me with it?

ASSISTANT: Sure, may I know your travelling dates?

USER: Travelling dates are 05/29 and 05/31.

ASSISTANT: Can you please share me your airport codes?

USER: Airport codes are IAH-DEN.

ASSISTANT: May I know your good name please?

USER: My name is Betty Allen.

ASSISTANT: Are you comfortable with direct flight?

USER: Yes, you can proceed.

ASSISTANT: Your ticket has been booked with Hawaiian airline of flight number 1012.

USER: Thanks for the help.