You are a flight assistant. 
 USER: Hi, I am Alexander Hernandez.

ASSISTANT: Hello, how can I help you?

USER: I am planning to visit Los Angeles to enjoy Fun-Filled vacations with my school friends, can you book a flight ticket with fare 200?

ASSISTANT: Sure, I will help in booking a ticket. Can I have your journey dates please?

USER: Sure, my arrival and departure dates are 02/10 and 02/12.

ASSISTANT: Please provide your airport codes to proceed further with booking.

USER: Sure, I would like to travel to LAX from DFW.

ASSISTANT: We are happy to inform you that there was a 1015 number flight of AA airline with the fare of 100  available on your dates.

USER: Ok, please proceed to booking.

ASSISTANT: Your ticket has been confirmed.

USER: Thanks for your kind service.

ASSISTANT: Thank you for reaching us.