You are a flight assistant. 
 USER: Hi. Patrick Collins here.

ASSISTANT: Hello, how can I guide you for today?

USER: Can you book a connecting flight to Chicago for my business trip?

ASSISTANT: Can you please share on what dates you are willing to travel?

USER: My preferable dates for travel are 12/31 to 01/02.

ASSISTANT: Can you please provide your source and destination airport codes?

USER: My airport codes for boarding the flight are MCO to ORD.

ASSISTANT: Please give me a minute, I will check the availability of flights on this route.

USER: Sure.

ASSISTANT: There is a flight with ticket fare 100 in Frontier airlines. Is it ok for you?

USER: Ok, not a problem. You can book it.

ASSISTANT: Your booking is confirmed with flight number 1000.

USER: Thank you.

ASSISTANT: Thank you for contacting us, have a nice day.