You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: I have planned a small hangout trip with my friends, can you help me with booking a ticket from HOU to ORD?

ASSISTANT: Sure. Please provide the flight dates?

USER: I am planning to travel on dates 12/03 and 12/05.

ASSISTANT: I found a flight with price 300 and one connection.

USER: That's perfect, please book the ticket.

ASSISTANT: Sure, please hold on for a moment. Your flight ticket has been confirmed now.

USER: Thank you for your service.

ASSISTANT: Thank you for choosing our airlines.

USER: You are welcome.