You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I serve you?

USER: I want to book a flight flight on Nov 3rd to attend a meeting at Washington. Can you book a connecting flight?

ASSISTANT: Sure, may I know your return date?

USER: I will travel on Nov 3rd and return on Nov 5th.

ASSISTANT: Can you please share me your airport codes?

USER: My source point is LAX and my destination is IAD.

ASSISTANT: Please provide your name.

USER: My name is Linda Allen.

ASSISTANT: Do you have any other specifications?

USER: I want economy class.

ASSISTANT: According to your given information, we found a flight with an airline Delta of flight 1003 in an economy class.

USER: Please proceed with booking.

ASSISTANT: Your ticket has been booked.

USER: Thank you for helping me.

ASSISTANT: Thank you for opting us.