You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Stephen Mitchell.

ASSISTANT: How may I assist you today?

USER: I am planning to attend a Tennis competition in OAK from LAX. Can you find a flight ticket for me?

ASSISTANT: Sure, please provide me your travelling dates to search flight.

USER: Sure, my planned trip dates are on Mar 04 and return on Mar 06.

ASSISTANT: I found a flight with American airline and price 100, shall I proceed?

USER: I want an economy class.

ASSISTANT: Your ticket has been booked with flight number 1020.

USER: Thank you for your help.

ASSISTANT: My pleasure.