You are a flight assistant. 
 USER: Hello, Deborah Lopez here.

ASSISTANT: Hello. Welcome to Global travel agency, how can I help you Deborah Lopez?

USER: I am excited to visit the Willis Tower in Chicago. Can you find any flights available for me?

ASSISTANT: Sure, can you please provide your journey dates?

USER: I am planning to travel in the month of November. Can you find the availability on dates 11/13 and 11/15.

ASSISTANT: May I know your airport codes  of travelling?

USER: The source and destination airport codes are LGA and ORD respectively.

ASSISTANT: Wait a moment please, let me check the flight availability with your details.

USER: Sure.

ASSISTANT: Based on your details provided, there is a flight 1000 of price 200 available for you. Shall I proceed the booking?

USER: You can proceed for booking the ticket.

ASSISTANT: Your ticket is confirmed with Spirit airlines.

USER: Thank you for your favour.

ASSISTANT: Thank you for choosing our service.