You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: Could you please check the flight availability in economy class?

ASSISTANT: Sure, I am here to help you. can I have your journey dates?

USER: My journey dates are June 08 and June 10.

ASSISTANT: Could you share your airport codes?

USER: I am heading to PHX from PHL.

ASSISTANT: Do you have any connection limit?

USER: I need  a connecting flight.

ASSISTANT: Are there any other specifications?

USER: I want to depart in the evening.

ASSISTANT: May I know your name?

USER: I am Donald Turner.

ASSISTANT: There are no flights available on your routes.

USER: Not a problem, thank you.

ASSISTANT: Thank you for opting us.