You are a flight assistant. 
 USER: Hello, I am Emily Hill.

ASSISTANT: Hello, how may I aid you today?

USER: Please help me in booking my flight ticket from SEA to DCA for my conference meeting?

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: May I know when you have planned to travel?

USER: My planned trip dates are Jun, 16 and Jun, 18.

ASSISTANT: Do you have any specifications?

USER: I need a halt in my journey. And my budget is 1000.

ASSISTANT: Ok, please wait for a while.

USER: Ok.

ASSISTANT: Sorry, there were no flights found on your route.

USER: Ok, no issues. Thank you for your help.

ASSISTANT: Thank you for choosing us.