You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you today?

USER: I need to book a flight ticket from JFK to IAD to enjoy Innovation festivals.

ASSISTANT: Sure, On which dates would you like me to book a flight ticket for you?

USER: Sure, I would like to depart on Apr 9 and Apr 11.

ASSISTANT: On what name, do I need to reserve your ticket?

USER: Sure, Ruth Hall here.

ASSISTANT:  In which class would you like me to book your flight ticket?

USER: I am comfortable with any class.

ASSISTANT: Let me know your connection limit?

USER: I prefer a direct flight.

ASSISTANT: Do you have any other requirements?

USER: I am looking for a return time at morning.

ASSISTANT: Ok, please wait a moment, let me search a flight for you.

USER: Sure.

ASSISTANT: There is a direct flight with ticket fare 800 in Frontier airlines in economy class having return time 5:00 AM. Is it ok for you?

USER: Yes, please proceed.

ASSISTANT: Your ticket has been reserved.

USER: Thank you for your assistance.

ASSISTANT: Thank you for choosing us.