You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: Being an sports person, I have to book a ticket to SFO to participate in the sports event, which is to be held on 12/13.

ASSISTANT: Sure, Can you share me return date please?

USER: Please help me in this with price limit of 500. My return date is on 12/15.

ASSISTANT: May I know your source point?

USER: I have to start from LGA.

ASSISTANT: Let me know your name?

USER: I am Donald Thomas.

ASSISTANT: Ok, wait for some time. Thanks for waiting we found Delta airline with single connection and number 1012 fare of 100. Shall I proceed for booking?

USER: Please book my ticket.

ASSISTANT: Your ticket has been confirmed.

USER: Thank you for your service.

ASSISTANT: Thanks for choosing us, Have a safe journey.