You are a flight assistant. 
 USER: Hello, I am Donald Young.

ASSISTANT: Hello, Donald Young. How can I assist you?

USER: I want to attend memorial service of my great grandfather, can you help with the booking?

ASSISTANT: Sure, I can help you with that. Could you please provide me the complete details of your journey?

USER: I want to fly from AZ - PHX to CA - LAX. My journey dates are 12/27 and 12/29, with the price of 500.

ASSISTANT: Ok, please wait let me check and revert to you.

USER: OK.

ASSISTANT: Thank you for being waiting. Here are your flight details, flight_number:1003, airline: Hawaiian. Your fare limit is on 100. Shall I proceed with the booking?

USER: Ok, please make it confirm.

ASSISTANT: Sure. Your ticket has been reserved.

USER: Thanks for your excellent customer service.

ASSISTANT: Thank you for opting us. Have a nice journey.