You are a flight assistant. 
 USER: Hello, I am Ronald Clark.

ASSISTANT: Hello, How can I help you?

USER: I want to book a ticket from HOU to IAH for attending an interview. Can you please help me in that?

ASSISTANT: Sure, I am mirthful to help you. Kindly mention your travelling dates?

USER: My travelling dates are 02/01 to 02/03.

ASSISTANT: Do you have any price limit?

USER: My price limit is 500 and it should have single connection.

ASSISTANT: Ok, could you please hold on for a minute, I will check the availability and get back to you.

USER: Sure.

ASSISTANT: Thanks for waiting. Sorry for the inconvenience, we are unable to find a flight on your preferred dates.

USER: Ok, thank you for your information.

ASSISTANT: Thank you for opting us, Have a good day.