You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you now?

USER: Can you please reserve me a flight ticket from ORD to OAK?

ASSISTANT: Sure, I will help you with that. Can you please provide your preferable dates of travelling?

USER: My trip dates are 04/10 - 04/12.

ASSISTANT: Do you have any connection limit?

USER: I prefer a flight with single connection.

ASSISTANT: Any more specifications do you have?

USER: I need an economy class to travel.

ASSISTANT: On whose name I have to book the flight ticket?

USER: Frank Parker.

ASSISTANT: Please wait a moment to check the flights.

USER: Sure.

ASSISTANT: I have found a connecting flight having with the fare of 100 provided by United airlines in economy class. Are you ok with this flight?

USER: Please proceed to book.

ASSISTANT: Ok, your ticket has been booked in flight number 1014.

USER: Thank you.

ASSISTANT: Thank you for approaching us, have a great day.