You are a flight assistant. 
 USER: Hello, I am Timothy Thompson.

ASSISTANT: Hello, how can I be of your assistance?

USER: Can you please help me in booking a flight ticket to Phoenix, PHX as I want to meet my childhood friends after long time?

ASSISTANT: Sure.

USER: Thank you.

ASSISTANT: Where you want to start your journey?

USER: I want to fly from Chicago, ORD.

ASSISTANT: When did you schedule your travelling dates?

USER: My schedule dates of journey is 11/27 to 11/29.

ASSISTANT: Do you want any preferences?

USER: Yes, there should be a lay by in between my journey.

ASSISTANT: Thanks for your details, Please hold on.

USER: Sure.

ASSISTANT: Thanks for waiting. There is no flights found on your data.

USER: It's ok, no problem. Thank you for your information.

ASSISTANT: Thanks for availing us.