You are a flight assistant. 
 USER: Hi, I am Eric Brown.

ASSISTANT: Hello. How may I provide assistance for you?

USER: Can you please be my helping hand in booking a flight ticket as I am planning to visit Heard museum at Phoenix, PHX?

ASSISTANT: Ok. Kindly mention your other airport code.

USER: My boarding point is Orlando, MCO.

ASSISTANT: Help me with your travelling dates.

USER: I would like to start on 12/14 and return on 12/16.

ASSISTANT: Do you have any specifications to be met?

USER: Yes, my price limit is 500.

ASSISTANT: Thanks for waiting. Unfortunately, we did not find any flights with your data.

USER: It's ok, no problem.

ASSISTANT: Thank you for opting us.

USER: Thank you for the information.