You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Dennis Collins.

ASSISTANT: How can I help you today?

USER: I need your help for booking a flight ticket from WA-SEA to CA-LAX, can you help me?

ASSISTANT: Sure, I am here to help you. Could you please provide your travelling dates?

USER: My departure day is 03/31 and return day is 04/02.

ASSISTANT: Thank you for giving your information, I got a flight-1002 of JetBlue airline. Can I proceed?

USER: Please book this flight ticket.

ASSISTANT: Thank you for your confirmation, your flight ticket has been booked.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing our service, hope you have a great journey. Most welcome.