You are a flight assistant. 
 USER: Hello. I am Gary Robinson.

ASSISTANT: Hello, how can I provide assistance to you?

USER: I have to attend my conference meeting at Cobo Center on 09/10, so please book me a flight ticket on 09/09 along with a return ticket on 09/11.

ASSISTANT: Sure, may I know your budget limit please?

USER: Yes, I can pay up to 5000.

ASSISTANT: From which airport you are flying?

USER: I would like to fly from Oakland, OAk.

ASSISTANT: What is the airport that you wish to land at?

USER: My destination is Detroit, DTW.

ASSISTANT: Ok, do you have any other requirements?

USER: Yes, I need a connecting flight.

ASSISTANT: We found a flight in Frontier airlines with 1016 flight number that exactly matches your given details. Shall I book it?

USER: Yes, you can book it.

ASSISTANT: Sure, your booking has been confirmed.

USER: Thank you for your assistance.

ASSISTANT: Thank you for choosing us.