You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I want to meet my twin sister, so please book my ticket from OAK to DFW.

ASSISTANT: Sure, I am happy to help you. Please tell us your name.

USER: Laura Evans here.

ASSISTANT: Thank you. Can I know your travel dates?

USER: My itinerary dates are June 29 and July 1.

ASSISTANT: Ok, is there any class preference?

USER: No.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: There is a flight with single connection in Spirit airlines and the ticket fare is 100 only. Flight departs at 4:00 hours and arrives at 18:00 hours. Can I book the ticket for you?

USER: Please book my ticket.

ASSISTANT: Your ticket is booked in economy class and your flight number is 1027.

USER: Thank you for your service.

ASSISTANT: You are welcome and thank you for choosing us.