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

ASSISTANT: Hello, how may I serve you today?

USER: I want to book a flight ticket to Phoenix, AZ - PHX to attend a live event of my favourite dancer. Can you please help me in booking a flight ticket from Los Angeles?

ASSISTANT: Sure, may I know the airport code of Los Angles?

USER: Sure, CA - LAX is my source code.

ASSISTANT: Do you have any budget limit?

USER: Yes, my fare limit is 200.

ASSISTANT: Please, provide your journey dates.

USER: My departure is on 03/21 and arrival is on 03/23.

ASSISTANT: Ok, please hold on.

USER: Sure.

ASSISTANT: Thanks for being hold. Sorry, there are no flights as on your requested dates.

USER: Ok, not an issue. Thanks for the information.

ASSISTANT: Thank you for reaching us.