You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I provide you the assistance?

USER: I want to visit 57 Street Gallery at Oakland, can you please help me in booking?

ASSISTANT: Sure, may I know your price limit?

USER: I can afford upto 5000.

ASSISTANT: Help me with the source and destination codes.

USER: My source and destination is at Oakland CA-OAK. It is a round trip.

ASSISTANT: When did you planned to travel?

USER: My planned dates of travel are from 10/28 to 10/30.

ASSISTANT: May I know your name please?

USER: I am Joseph Perez.

ASSISTANT: Please give me a moment.

USER: Ok.

ASSISTANT: I found a flight in an airline Spirit with the flight number 1012. Shall I proceed?

USER: You can proceed with booking.

ASSISTANT: Your flight ticket is booked.

USER: Thank you.

ASSISTANT: Thank you for availing us.