You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you today?

USER: I am looking for a flight from LGA to ORD, can you please help me in booking?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: May I know your travel dates please?

USER: My travelling dates are Dec 26 and Dec 28.

ASSISTANT: Ok, do you have any specifications?

USER: I want to depart in evening.

ASSISTANT: Ok, hold on for a moment. Let me check the best available flight for you.

USER: Sure, I will wait for your information.

ASSISTANT: I found a flight for you with Frontier Airlines and it costs you 300. Shall I proceed to reserve a seat in this single connecting flight?

USER: If it is an economy class flight, please proceed for further.

ASSISTANT: On whose name you would like to book this ticket?

USER: My name is Karen Davis.

ASSISTANT: Your ticket has been booked with 1003 flight number.

USER: Thank you for booking.

ASSISTANT: Welcome, thank you for choosing us. Have a safe flight.