You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Melissa Gonzalez.

ASSISTANT: How can I support you at this moment?

USER: I need to book a flight on 04/16 to 04/18, can you please help me for booking?

ASSISTANT: Sure, I am glad to help you, may I know your price limit?

USER: Sure, price limit should not exceed 5000.

ASSISTANT: Could you please provide your visiting places codes?

USER: My source point is LAS and AUS.

ASSISTANT: Please wait for a couple of minutes.

USER: Sure.

ASSISTANT: There is a Hawaiian 1018 with price of 300. Is it ok for you?

USER: Ok, proceed for booking.

ASSISTANT: Your booking has been confirmed on name of Melissa Gonzalez.

USER: Thanks for your information.

ASSISTANT: Thank you for approaching us.