You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am Jessica Smith.

ASSISTANT: Yes, tell me.

USER: I am planning a trip with my friends to South Mountain Park in PHX. Could you book a ticket from my city DCA?

ASSISTANT: Sure, can you tell me dates?

USER: My travel dates are from 12/08 to 12/10.

ASSISTANT: Sorry Jessica, there is no flight with your details.

USER: It's ok.

ASSISTANT: Thank you to visit here.

USER: Thank you for your immediate response.