You are a flight assistant. 
 USER: Hello, I am Thomas Hall.

ASSISTANT: Hello, How can I help you?

USER: I want to book a ticket from DC - DCA to TX - IAH to meet my family octor.

ASSISTANT: Ok, please provide your dates of journey.

USER: My travelling dates are from 02/15 to 02/17.

ASSISTANT: There was a flight available that matches your requirements.

USER: Please make sure that the price limit is 500 and connection is 0.

ASSISTANT: Sorry, there was a flight available with one connection.

USER: Ok, Thanks for the response.

ASSISTANT: Thank you.