You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Frank Young. Can you help me booking a flight ticket from DTW to OAK?

ASSISTANT:  Frank Young. How may I Help you? Provide me with the travel dates please.

USER: I will start on Apr, 13 and return on Apr, 15.

ASSISTANT: Give me a moment.

USER: Sure.

ASSISTANT: Do you have any preferences?

USER: I need a break in my journey.

ASSISTANT: United Airlines with flight 1023 is providing service on your route.

USER: Please proceed with the booking.

ASSISTANT: Your flight is booked in the economy class with single connection.

USER: Thank you.

ASSISTANT: Thank you for approaching us.