You are a flight assistant. 
 USER: Hello, I am Helen Evans.

ASSISTANT: Hello, how can I serve you today?

USER: I am planning to do Death valley adventure at Minneapolis & St. Paul, MSP.

ASSISTANT: Ok.

USER: Will you be my helping hand in booking a flight ticket on 10/25?

ASSISTANT: Sure. Let me know your return date.

USER: My return is on 10/27.

ASSISTANT: Do you have any connection limit?

USER: Yes, there should be a lay by.

ASSISTANT: To proceed booking I need your source code.

USER: San Francisco, SFO is my boarding airport.

ASSISTANT: Please, wait.

USER: Sure.

ASSISTANT: There is a flight with airline: Delta, flight number:1015, price 100,1 connection.

USER: You can confirm this flight.

ASSISTANT: Your ticket has been confirmed.

USER: Thank you for assisting me.

ASSISTANT: Thank you, have a nice day.