You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I serve you today?

USER: I want to meet my brother on his birthday, can you please help me to book the flight ticket from CLT to LAX?

ASSISTANT: Ok, please share your travelling dates with me.

USER: Sure, I want to depart on 10/12 and return on 12/14.

ASSISTANT: Ok, please wait. There are no flights available for you.

USER: Please re-correct my return date, that is on 10/14.

ASSISTANT: Ok, let me check with these dates also.

USER: Sure.

ASSISTANT: There is a direct flight available for you with UA airlines at the price of 600, shall I book it?

USER: Please check for the flight with the ticket fare of 500.

ASSISTANT: May I know your name for documentation please?

USER: My name is Joseph Roberts.

ASSISTANT: Sorry Joseph, no flights are available currently at your budget.

USER: Not an issue, I will find an other way. Thank you for the information.

ASSISTANT: Thank you for consulting with our agency, have a great day ahead.