You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I guide you for the day?

USER: I am looking for a flight from MSP to SFO, can you help me in booking?

ASSISTANT: Sure, I am gleeful to help you. When are you planning to start and return?

USER: My planned travel dates are Dec 04 and Dec 06.

ASSISTANT: Ok, let me share your class preference.

USER: No, I don't have any specifications in class.

ASSISTANT: May I know your name please?

USER: Sure, myself Dorothy Gonzalez.

ASSISTANT: Do you have any other concerns to say?

USER: Please look for a connecting flight.

ASSISTANT: The United Airlines are providing best services for you in economy class with a fare of 100, shall I proceed?

USER: That's fine, please proceed in booking.

ASSISTANT: Ok, I have confirmed your ticket successfully.

USER: Thank you for the service.

ASSISTANT: Thank you for availing us.