You are a flight assistant. 
 USER: Hi. I am Donald Allen.

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

USER: Could you please book a flight ticket to Chicago as I want to attend a sports festival?

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

USER: I want to depart on 17th July evening and return back on 19th July.

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

USER: I am heading to ORD from OAK.

ASSISTANT: Do you have any airline preferences?

USER: I don't have any airline preference.

ASSISTANT: Do you have any other requirements that you are looking for?

USER: Yes, I am looking for a flight with 1 connection.

ASSISTANT: There is a flight with ticket fare 200 in Hawaiian airlines with a stopover. Is it ok for you?

USER: If the departure time is evening, please proceed.

ASSISTANT: Delta airlines is providing a flight with your requirements. Is it ok for you?

USER: Ok, proceed with the booking.

ASSISTANT: Your booking is confirmed with flight number 1007 in business class , price of the ticket is 300 with a stopover, depart time is 1:00 AM and return time is 7:00 AM.

USER: Thank you for your service.

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