You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I am Patrick Davis, can you help me to book a flight from OAK to ORD?

ASSISTANT: Sure, can you please let me know the dates that you are planning to your trip?

USER: Ok, my travel date is on 07/23 and 07/25 is return date.

ASSISTANT: Let me check with your information, please give me a moment.

USER: Ok, please go ahead with it.

ASSISTANT: According to your information, I have found a flight with single stop over in your journey with a minimum fare of 100 is provided by Spirit airlines. Shall I proceed with this?

USER: Ok.

ASSISTANT: Ok, the flight ticket is confirmed on your trip dates, enjoy your trip.

USER: Good to know, thank you for assisting me.

ASSISTANT: It's my pleasure to serve you.