You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I support you today?

USER: I have planned to travel from CLT to IAD to meet my project manager. Can you please help me with booking a flight ticket?

ASSISTANT: Sure, may I know your scheduled travel dates?

USER: Sure, My travelling dates are Dec 3 and Dec 5.

ASSISTANT: Is there any connection limit?

USER: I prefer to travel in a direct flight.

ASSISTANT: Do you have any other specifications?

USER: No, I do not have any other specifications.

ASSISTANT: May I know your name?

USER: I am Benjamin Smith.

ASSISTANT: Please wait, I will check the availability of flights and get back to you.

USER: Sure.

ASSISTANT: Sorry, there were no flights found with your requirements.

USER: No worries, thank you for the information.

ASSISTANT: Thank you for contacting us.