You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you?

USER: I am Mary Allen, can you help me to book a flight from SFO to LGA?

ASSISTANT:  Sure, I will help you. Please send your travelling dates.

USER: My travelling dates are 10/12 and 10/14.

ASSISTANT: May I know your class preferences?

USER: I am fine with any class.

ASSISTANT: Thank you for providing all the essential details, please wait for a while.

USER: Sure.

ASSISTANT: There is a direct flight-1019 on UA airlines, is it fine for you?

USER: Proceed with booking.

ASSISTANT: Ok, booking is done with your name.

USER: Thank you.

ASSISTANT: Welcome.