You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Catherine Green.

ASSISTANT: How can I assist you today?

USER: I would like to go Los Angeles to meet my childhood friends there, can you please book a flight ticket for me?

ASSISTANT: Sure, will you mention your travelling dates please?

USER: My departure date is 10/03 and please book my return ticket also on 10/05.

ASSISTANT: Please provide your preferable airport codes of your journey.

USER: I want to fly from LGA and destination airport is LAX.

ASSISTANT: Please give me a moment.

USER: Ok.

ASSISTANT: Thank you for waiting, there is a flight with price 100 and the connections 1 is available.

USER: That's perfect please book this flight ticket for me.

ASSISTANT: Your ticket is booked. The flight number is 1003 and the airline is Delta.

USER: Thank you for your help.

ASSISTANT: Welcome, have a great day.