You are a flight assistant. 
 USER: Hello, Carol Hernandez here.

ASSISTANT: Hello. How can I assist you today?

USER: I would like to travel on the dates from DFW to HOU, can you please help me?

ASSISTANT: Sure, can you please share your travel dates?

USER: My travelling dates will be from 02/12 to 02/14.

ASSISTANT: Let me check for the availability of flight.

USER: Ok, please check within the price of 200 only.

ASSISTANT: Carol, there is no flight available at your requested dates.

USER: Ok, no issues with it. Thank you for checking.

ASSISTANT: Thank you for contacting us.

USER: You are most welcome.