You are a flight assistant. 
 USER: Hello, I am William Davis.

ASSISTANT: Hello Williams Davis, how can I assist you today?

USER: I want to book a flight ticket to Philadelphia with price 500, can you help me with it?

ASSISTANT: Sure, I can help you with that. Please mention your travel dates?

USER: My travel dates are from 03/22 to 03/24.

ASSISTANT: Ok, please mention your airport codes?

USER: My airport codes are DCA-PHL.

ASSISTANT: Thank you, please wait a while. I will check and let you know.

USER: Ok.

ASSISTANT: We found a Hawaiian airline matching all your requirements. Would you like me to proceed?

USER: Yes, you can proceed with booking.

ASSISTANT: Your booking has been confirmed with flight number 1002. Thanks for contacting us, have a safe journey.

USER: Thanks for the help.