You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you out?

USER: Can you please make a reservation with the name of Katherine Brown?

ASSISTANT: Sure, I will help you in booking the ticket. May I know your travelling dates please?

USER: My journey dates are on Jan 10th and 12th.

ASSISTANT: Can I know your airport codes please?

USER: My airport codes are, DFW to IAD.

ASSISTANT: Can I know your name please?

USER: My name is Katherine Brown.

ASSISTANT: Do you need any specifications?

USER: I need a flight with single connection.

ASSISTANT: Sorry, there are no flights found in our database.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for reaching us.