You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help?

USER: I am Alexander Carter. I would like to attend a training session for new project at my main branch at IAH, can you please help in booking a flight for me from CLT?

ASSISTANT: Sure, I am happy to help.

USER: Thank you.

ASSISTANT: Please share your travelling dates.

USER: My travelling dates are 03/08 and return on 03/10.

ASSISTANT: Please wait.

USER: Sure.

ASSISTANT: I am sorry to inform you that there is no flight available for you.

USER: No problem, thank you for your information.

ASSISTANT: Thank you for opting us.