You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: I am Ryan Mitchell want to visit Detroit Institute of Arts, can you book a ticket within the fare of 200?

ASSISTANT: Ok, can I have your journey dates please?

USER: Sure, my travelling dates will be 12/26 and 12/28.

ASSISTANT: Please provide your airport codes.

USER: Yes, I want to fly from OAK to DTW.

ASSISTANT: Please wait a moment.

USER: Ok.

ASSISTANT: I found a flight for you in Frontier airlines with price 100. Can I proceed?

USER: Yes, please.

ASSISTANT: Ok, your booking is confirmed with flight number 1011.

USER: Thank you.

ASSISTANT: Thank you for reaching us.