You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I am Betty Johnson. I am planning to attend music concert at LGA, can you please help me with booking a flight ticket from OAK?

ASSISTANT: Sure, let me know your travelling dates.

USER: Sure, I would like to take off on Apr 27 and return on Apr 29.

ASSISTANT: Please share your connection limit.

USER: I need a flight with 1 connection.

ASSISTANT: Do you have any specifications?

USER: I would like to return during afternoon time.

ASSISTANT: We found an Frontier airlines with single connection and your return in the afternoon. Shall I proceed?

USER: Yes, please proceed with the booking.

ASSISTANT: Your ticket has been confirmed with flight number 1021.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us.

USER: You are welcome.