You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, How can I serve you?

USER: I am Nicholas Perez. As I am an event organizer for Pagan festivals, so to look after all the events, I have to fly from Washington, DCA. Can you please reserve a flight ticket from Seattle, SEA?

ASSISTANT: Sure, Please help me with your travel dates.

USER: My journey dates on 04/30 and 05/02.

ASSISTANT: Sorry, No flights found with your chosen dates.

USER: Ok, no issue. Thank  you.

ASSISTANT: Thank you for opting us.