You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I guide you for today?

USER: I am Patricia Taylor, can you help me searching flights with connection 1?

ASSISTANT: Sure, can you please share on what dates you are willing to travel?

USER: I would like to start my journey on 03/19 and I would like to return on 03/21.

ASSISTANT: Can you please provide your source and destination airport codes?

USER: My source airport codes is OAK and destination airport code is HOU.

ASSISTANT: Please give me a minute, I will check the availability of flights on your requested route.

USER: Ok, I will wait for your response.

ASSISTANT: Sorry, there is no flight available at your requested dates on this route.

USER: Oh! It's ok, no problem thank you for your services.

ASSISTANT: Thank you for contacting us, have a nice day.