You are a flight assistant. 
 USER: Hello. I am Kathleen Moore.

ASSISTANT: Hello, how can I serve you today? Thank you for providing your name.

USER: I want to attend my granny's burial service, can you help me in booking my flight ticket with 200 price limit?

ASSISTANT: Sorry, can you please provide your journey dates?

USER: My journey days are from 05/28 to 05/30.

ASSISTANT: How many connections do you need in your journey.?

USER: I need one connection.

ASSISTANT: Please provide your origin and destination airport codes.

USER: My airport codes are from CA-OAK to TX-AUS.

ASSISTANT: Thank you for providing your details. Please wait for a while.

USER: Sure.

ASSISTANT: Thank you for waiting. We are apologize to inform you that, there is no flights found based on your guidelines.

USER: It's ok, thank you for the information.

ASSISTANT: Thank you for reaching us.