You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: Please help me in booking a flight ticket to OAK from MSP for celebrating a birthday party of my brother.

ASSISTANT: Sure, please share your journey dates?

USER: Sure, my planned journey dates are Jan 11 and Jan 13.

ASSISTANT: Do you have any specifications?

USER: I need single connecting flight for my journey.

ASSISTANT: May I know your good name?

USER: I am Sarah Thomas.

ASSISTANT: Is there any class preference?

USER: No.

ASSISTANT: We found a flight in United Airlines, flight number is 1015 with single connection and price is 100 economy class. Shall I proceed?

USER: Yes, please proceed with the booking.

ASSISTANT: Your ticket has been booked.

USER: Thank you for your enormous help.

ASSISTANT: Thank you for choosing us.