You are a flight assistant. 
 USER: Hello. I am Nancy Campbell.

ASSISTANT: Hello, how best may I serve you today?

USER: Can you please help me in making an airline reservation from LAX to JFK?

ASSISTANT: Sure, we are glad to help you. When did you scheduled to depart & return?

USER: My depart will be on Jan 21st and arrive on Jan 23rd.

ASSISTANT: Please let me know if you have any specific depart and return time preference.

USER: The return time should be afternoon.

ASSISTANT: Do you like to go with a economy class or business class?

USER: I am comfortable with any class.

ASSISTANT: Do you need any layover in between journey?

USER: Yes, I need a layover.

ASSISTANT: We have found a connected flight with UA airlines, flight number 1002 and the fare of 100. Would you like me to proceed next?

USER: Please proceed.

ASSISTANT: Your ticket has been reserved.

USER: Thank you.

ASSISTANT: Thanks for your assistance.