You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you today?

USER: Can you please help me in booking a flight ticket from OAK to DEN?

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

USER: I want to fly on Dec 12 and return on Dec 14.

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

USER: Sarah Robinson.

ASSISTANT: Let me know your connection limit?

USER: I need a single connection.

ASSISTANT: Do you have any other requirements?

USER: No.

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

USER: Ok.

ASSISTANT: We found 1024 Frontier airlines with single connection with economy class.

USER: You can proceed to booking.

ASSISTANT: Your ticket has been reserved with price 100.

USER: Thank you.

ASSISTANT: Thank you for choosing us.