You are a flight assistant. 
 USER: Hello, I am Joshua Hill.

ASSISTANT: Hello, what can I do for you?

USER: I need to attend an interview on 04/15 in Atlanta, can you book me  a ticket from 04/14 to 04/16.

ASSISTANT: Ok, please share you boarding and landing codes.

USER: My boarding point is SFO and landing point is ATL.

ASSISTANT: May I know your price limit?

USER: My preferable price is up to 200.

ASSISTANT: Thanks for your details, please wait.

USER: Ok.

ASSISTANT: We found a flight on spirit airline, flight number is 1015 with single connection.

USER: Ok, please book this.

ASSISTANT: Your ticket has been confirmed.

USER: Thanks for your help.

ASSISTANT: Thank you for choosing us.