You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Matthew Moore.

ASSISTANT: How can I assist you today?

USER: Can you help me in booking from ATL to IAD?

ASSISTANT: Sure, may I know your travelling dates?

USER: My travelling dates are from Aug 13 to Aug 15.

ASSISTANT: Do you need any connection limit?

USER: I need a connecting flight.

ASSISTANT: Could you share me your depart and arrival time?

USER: I want to depart in the afternoon time.

ASSISTANT: Do you have any other requirements?

USER: I want a flight in normal cost.

ASSISTANT: Sorry to inform you that there are no available flights found under your name.

USER: Ok, No issues. Thank you.

ASSISTANT: Thank you for opting us.