You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I need to attend a conference regarding the world health organisation. Can you book me a ticket from PHL to OAK?

ASSISTANT: Sure, I will help you. May I know your planned trip dates please?

USER: My departure is on Dec 28th and arrival is on Dec 30th.

ASSISTANT: Can I have your good name please?

USER: I am Ronald Martin.

ASSISTANT: Can I have your connection preference?

USER: I need 1 lay by.

ASSISTANT: May I know your class preference?

USER: I am looking for an economy class.

ASSISTANT: Do you have any other specifications?

USER: My return time must be morning.

ASSISTANT: I found an economy class in United Airlines with fare 200 and it has single connection. Can I book your ticket?

USER: Fine, please proceed.

ASSISTANT: Ok, your booking is confirmed with flight number 1013 and it return at 8:00 AM.

USER: Thanks for your support.

ASSISTANT: Thank you for approaching us.