You are a flight assistant. 
 USER: Hi, I am Kevin Edwards.

ASSISTANT: Hello, how may I assist you now?

USER: Can you please help me with booking a flight ticket from IAH to IAD?

ASSISTANT: Kevin Edwards, may I know your travelling dates for this journey?

USER: My travel dates are 11/02 and 11/04.

ASSISTANT: Sorry to tell you, there are no flights currently available on your requested route.

USER: Ok, no issues.

ASSISTANT: Thank you for choosing our services.

USER: Thanks for the information.

ASSISTANT: Have a nice day.