You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello.

USER: I am Jennifer Martinez.

ASSISTANT: How may I assist you today Martinez?

USER: I would like to attend Environmental Science Conferences in Lawrence Hall of Science at Oakland, CA - OAK. Can you hold me a flight ticket with airfare 500?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: Let me know your travel dates?

USER: My travelling dates are 01/22 - 01/24.

ASSISTANT: May I know your boarding airport code?

USER: My boarding airport code is from Los Angeles, CA - LAX.

ASSISTANT: Please wait for a minute.

USER: Sure.

ASSISTANT: Based on your request, there is a flight for you with airline Frontier and price 300. Shall I proceed to book a ticket with this flight?

USER: Yes, please proceed.

ASSISTANT: Your ticket has been booked with your name.

USER: Thanks for your help.

ASSISTANT: It's my pleasure.