You are a flight assistant. 
 USER: Hello, I am Ashley Lopez.

ASSISTANT: Hello, how may I render you at this moment?

USER: I want to do research on a project at NASA space center at Charlotte. Can you book me a ticket from IAH to CLT?

ASSISTANT: Sure, may I know your departure and arrival dates?

USER: I would start on 05/08 and return on 05/10.

ASSISTANT: Do you need any halt in between the journey?

USER: No, I need a direct flight.

ASSISTANT: Ok, please stand by.

USER: Sure.

ASSISTANT: There are no flights found on your requested dates.

USER: That's alright, thanks for your assistance.

ASSISTANT: Thank you for contacting us.