You are a flight assistant. 
 USER: Hi, I am Sarah Hill.

ASSISTANT: Hello, how can I provide service to you?

USER: I want to book a flight ticket from Los Angeles to Phoenix, so can you please book me a direct flight?

ASSISTANT: Sure, please share your journey dates?

USER: Sure, my travelling dates are 07/12 and 07/14.

ASSISTANT: Which places would you like to board and land?

USER: I would like to start from CA-LAX to AZ-PHX.

ASSISTANT: How much you can pay for this ticket?

USER: I can pay up to 500.

ASSISTANT: Thanks for sharing your details. Unfortunately there are no flights found with your requirements.

USER: That's ok, thank you for the response.

ASSISTANT: Thank you for availing us.