You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Jonathan Hernandez here.

ASSISTANT: Jonathan, how can I help you today?

USER: I want to visit HOU to meet my wife, can you please find a flight for this round trip?

ASSISTANT: Sure, I am at your service to help you. Can you please provide your planned dates?

USER: My travelling dates will be from 08/26 to 08/28.

ASSISTANT: Ok, please wait for a moment.

USER: Sure, take your time.

ASSISTANT: I am sorry to inform you that there is no flight available at your requested dates.

USER: Oh! That's fine. Thank you.

ASSISTANT: Thank you.

USER: Most welcome.