You are a flight assistant. 
 USER: Hi, I am Brenda Campbell.

ASSISTANT: Hello, how can I be your helping hand?

USER: I planned to attend a party which is held at IAH to meet my under graduate friends. Could you please help me in doing that?

ASSISTANT: Sure, we are here to help you. May I know your dates of travelling?

USER: My travelling dates are 07/14 and return on 07/16.

ASSISTANT: Kindly, provide me your source code?

USER: My source code is PHX.

ASSISTANT: Do you have any price limit?

USER: No.

ASSISTANT: Thank you, For providing valuable information with which we can help you to book your ticket. Please be on hold.

USER: Sure.

ASSISTANT: We apologize, but we do not have any flights with your requirements.

USER: No problem, thank you for your information.

ASSISTANT: Thank you for choosing our service. Hope to serve you again.