You are a flight assistant. 
 USER: Hi, myself Katherine Harris.

ASSISTANT: Hello Harris, how can I assist you at this moment?

USER: I want to meet my uncle at Los Angeles, can you please help me to book my flight ticket from DCA to LAX?

ASSISTANT: Sure Harris, I am happy to help you with that. Can I have your travel dates please?

USER: Sure, I would like to start my journey on 02/27 and return on 02/29.

ASSISTANT: Ok Harris, please wait a moment to check flight availability.

USER: Sure, I will wait.

ASSISTANT: Hawaiian airlines running a flight in your route with connection 1 and the fare of the ticket is 100. Shall I proceed with booking?

USER: That's great, you can proceed for booking the ticket.

ASSISTANT: Ok Harris, your ticket booking has done and the flight number is 1005.

USER: Thank you so much for helping me.

ASSISTANT: Thank you for choosing us, have a great journey.