You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: Can you help me to book a direct flight ticket?

ASSISTANT: Sure, we are here to help you. Can you share me your travelling dates?

USER: Thank you. My preferable journey dates are May 29 and May 31.

ASSISTANT: May I know your source point and destination point?

USER: My airport codes are IAD and HOU.

ASSISTANT: May I know your name?

USER: My name is Ronald Moore.

ASSISTANT: Ok, wait for some time.

USER: Sure.

ASSISTANT: We found Hawaiian airlines with direct flight and number 1009 fare of 200 with economy class, Shall I proceed for booking?

USER: Please proceed to book my flight ticket in this airlines.

ASSISTANT: Your ticket has been confirmed.

USER: Thank you.

ASSISTANT: Thanks for approaching us.