You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: Stephanie Perez here. I want to book a flight ticket with 1 connected flight to IAH. Can you please book me a flight ticket?

ASSISTANT: That's nice, please tell me your dates of journey?

USER: Ok, my dates of journey are 02/12 and 02/14.

ASSISTANT: Ok, may I know your source airport code please?

USER: Yes, my source code is CLT.

ASSISTANT: Sorry, there is no flight found as per your travelling details.

USER: Not an issue, anyway thank you for the help.

ASSISTANT: Thank you for your service.