You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Matthew Roberts.

ASSISTANT: How can I guide you?

USER: Can you check any flight is available on 12/12 to 12/14,as I have a interview?

ASSISTANT: Sure, can I know your airport codes?

USER: I  will fly from LGA to HOU.

ASSISTANT: Please give  me a minute, I will be back with the details of the available flights.

USER: Sure.

ASSISTANT: Sorry Roberts, there is no flight available on your requested dates.

USER: No issue, thank you for checking.

ASSISTANT: You are welcome.