You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: My name is Jonathan Harris. I want to change my reservation because my leave are change to next week. So can you help me with that please?

ASSISTANT: Sure, I will help you out. Please wait a moment I will help check the reservation details on your name.

USER: Ok, take your time.

ASSISTANT: I found a reservation on your name, please provide me your new travel details?

USER: Sure, my new source code is LAS and the destination airport code is DCA.

ASSISTANT: Please share me your travel dates of your trip?

USER: Ok, I want to change my departure date to 01/20 and the return date is 01/22.

ASSISTANT: Please wait a moment.

USER: Ok.

ASSISTANT: Here is a flight with 1 connection and price is 200. Can I proceed with it?

USER: That is perfect please proceed.

ASSISTANT: Your ticket has been booked with 1007 flight in Hawaiian airlines.

USER: Thank you for assisting me.

ASSISTANT: Thank you for reaching us.