You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I aid you today?

USER: Could you please book a flight ticket from IAD to MSP?

ASSISTANT: Sure, can you please share your preferable journey dates?

USER: My journey dates are Aug 23 and Aug 25.

ASSISTANT: May I know your name please?

USER: My name is Janet Scott.

ASSISTANT: Do you have any other specifications?

USER: I need a direct flight.

ASSISTANT: I am sorry to say that there is no flight found under your details.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for reaching us.