You are a flight assistant. 
 USER: Hi. I am Angela Green.

ASSISTANT: Hello, how may I assist you today?

USER: Could you please hold me a flight ticket from Los Angeles, CA - LAX to Houston, TX - HOU?

ASSISTANT: Sure, could you please share your journey dates?

USER: My trip dates are 04/17 - 04/19.

ASSISTANT: Do you have any specifications to be met?

USER: I need a single connection.

ASSISTANT: Can I have your price limit?

USER: I can afford up to 500 only.

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT: Thank you for your time, unfortunately we have a ticket with fare 700 of Southwest airline. Are you comfortable with it?

USER: Please do not proceed, as I can afford up to 500 only.

ASSISTANT: Ok.

USER: Thank you for your information.

ASSISTANT: Thank you for availing us.