You are a flight assistant. 
 USER: Hi. I am Gregory Williams.

ASSISTANT: Hello, how can I help you?

USER: I just want to attend a business meeting at Charlotte, NC - CLT. Can you help me out?

ASSISTANT: Sure, when are you planning to travel?

USER: My journey dates are from 06/07 to 06/09.

ASSISTANT: Please provide your origin airport code.

USER: My origin airport code is Houston, TX - IAH. I need a halt in my journey.

ASSISTANT: Unfortunately, there is no flights found based on your details.

USER: Not an issue. Thank you for your help.

ASSISTANT: Thank you.