You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: I am Jacob Walker. Can you help me searching  flights from CLT to HOU to attend my project seminar?

ASSISTANT: Sure, may I know on what dates you have planned to travel?

USER: My travelling dates are 04/24 and 04/26.

ASSISTANT: Sorry for the inconvenience, there is no flight available on your requested dates.

USER: Oh! It's ok, no problem.

ASSISTANT: You are welcome.

USER: Thank you for your services.