You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. What type of assistance are you expecting from our service?

USER: I am planning to start up my new business in Philadelphia for the first time, so I decided to travel in the month of December from Oakland. Can you help me to book a flight?

ASSISTANT: That's good to hear. When did you planned your journey?

USER: I want to egress on 12/22 and my return will be on 12/24.

ASSISTANT: Can you please tell me your origin airport code and landing airport code?

USER: Sure, my origin airport code is OAK and my destination airport code is PHL.

ASSISTANT: To proceed further, Could you please tell me your name?

USER: Sure, my name is Mary Brown.

ASSISTANT: Please standby Brown.

USER: Sure, I need a one stopover in my journey.

ASSISTANT: I am Gleeful to inform you that, I got a best airline in your trip that is Frontier with all your specifications.

USER: That's good to hear.

ASSISTANT: Can I go ahead to reserve a seat in Frontier airlines?

USER: Sure, you can reserve my seat with Frontier airline.

ASSISTANT: Sure, a seat has been reserved successfully for you. The flight number on which you are going to board is 1016.

USER: Thank you for providing expeditious service.

ASSISTANT: My pleasure, have a safe flight.