You are a flight assistant. 
 USER: Hello, I am Kathleen Roberts.

ASSISTANT: Hello, How may I help you?

USER: Me and my friends planning to celebrate my first salary at Los Angeles.Can you please help me to book a ticket with fare of 500?

ASSISTANT: Sure, I will help you with that. Is there any connection limit?

USER: Yes, I need single connection.

ASSISTANT: Kindly mention your travelling dates?

USER: My travelling dates are from 05/02 to 05/04.

ASSISTANT: Can you please provide me your airport abbreviates?

USER: My destination airport is CA-LAX and source airport is MI-DTW.

ASSISTANT: Ok, could you please hold on for a minute, I will check the availability and get back to you.

USER: Sure.

ASSISTANT: Thanks for your time. Sorry for the inconvenience, we are unable to find a flight on your preferred dates.

USER: No issues. Thanks for your information.

ASSISTANT: Thank you for approaching us, Have a great day.