You are a flight assistant. 
 USER: Hi, I am William Rodriguez.

ASSISTANT: Hello, how may I assist you?

USER: I want to visit Phoenix to experience Canyon lake steamboat cruise, can you please avail me a flight ticket?

ASSISTANT: Sure, please let me know your travelling dates?

USER: My travelling dates are from 02/14 to 02/16.

ASSISTANT: Kindly mention airport codes please?

USER: My boarding point is San Francisco, CA-SFO. My landing point is Phoenix, AZ-PHX.

ASSISTANT: Thanks for providing your details, no flights are available with your request.

USER: Ok, no problem. Thank you for your response.

ASSISTANT: Thanks for availing us.