You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: I have to go PHL next month for giving a seminar to students about science and technology there, can you please book a flight ticket from LAS?

ASSISTANT: Sure, I will help you in booking.

USER: Thanks.

ASSISTANT: May I know your travelling dates please?

USER: I would like to departure on 10/11 and please book my return ticket also on 10/13.

ASSISTANT: May I know your name please?

USER: Sure, my name is William Walker.

ASSISTANT: Ok, please wait a moment.

USER: Ok.

ASSISTANT: There is a flight with connection 1 and price 200, can I proceed with this flight?

USER: I am comfortable with this flight, please proceed.

ASSISTANT: Ok, you ticket has been booked.

USER: Thank you for your help.

ASSISTANT: THank you for choosing our services.