You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. May I know your good name please?

USER: My name is Amy Hall.

ASSISTANT: How can I assist you?

USER: Being an architecture, I have a meeting in The Driskill at Austin which is helpful in different aspects for designing a building.

ASSISTANT: Ok.

USER: Would you help me in flight ticket booking on 03/16?

ASSISTANT: Sure, we are mirthful to serve you.

USER: Thank you.

ASSISTANT: Could you please let me know your airport codes?

USER: I have to start my journey at PHX. And the destination airport code is  AUS.

ASSISTANT: When would you like to return?

USER: I have to return on 03/18.

ASSISTANT: How much can you afford for the flight ticket?

USER: I can afford up to 200.

ASSISTANT: Please wait a minute, I will revert you with the best results.

USER: Sure.

ASSISTANT: Thank for waiting. Unfortunately, there is no flight available with your requirements.

USER: Ok, no problem. Thank you for your information and service to me.

ASSISTANT: Thank you for choosing us.