You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you today?

USER: I am Steven Phillips.

ASSISTANT: Ok.

USER: Please book me a ticket with the fare of 500 to meet my friends at Seattle.

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: Do you prefer a connected flight or direct flight?

USER: I need a halt.

ASSISTANT: Could you please ensure your journey locations with airport codes?

USER: My airport codes are from PHL to SEA.

ASSISTANT: Let me know when you are willing to travel?

USER: I have planned to travel on 01/08 and 01/10.

ASSISTANT: Ok, please wait for a moment.

USER: Ok.

ASSISTANT: Thank you for waiting, sorry there is no flight available on your journey data.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for reaching us.