You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I render you at this moment?

USER: I would like to visit New York, can you help me to book a flight ticket from OAK to LGA?

ASSISTANT: Sure, please help me with your travelling dates.

USER: My travelling dates are 20 and 22 of Jan.

ASSISTANT: Ok, may I know your class preferences?

USER: No.

ASSISTANT: Ok, at what time would you like to depart and return?

USER: I am comfortable with any time.

ASSISTANT: Do you have any other requirements?

USER: No.

ASSISTANT: We found a direct flight with fare of 100 and economy class matches your schedule.

USER: Please proceed.

ASSISTANT: To proceed further I need your good name?

USER: I am Ashley Smith.

ASSISTANT: Your ticket has been confirmed with flight number 1004 and a it is AA airline.

USER: Thanks for helping me.

ASSISTANT: Thank  you for reaching us.