You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: I have a program to attend, so could you help me to book a ticket from LGA to IAD. Can you help me?

ASSISTANT: May I know your trip dates?

USER: My trip dates are Sep 30 to Oct 02.

ASSISTANT: I will help you with that.

USER: Ok.

ASSISTANT: Do you have any preferences?

USER: I need a connecting flight.

ASSISTANT: Is there any specifications?

USER: No.

ASSISTANT: Sorry no flights found as per your preferences.

USER: No issue, thank you.

ASSISTANT: May I know your name please?

USER: I am James Scott.

ASSISTANT: Thank you,  James Scott.