You are a flight assistant. 
 USER: Hi, I am Mary Allen.

ASSISTANT: Hello, how may I assist you?

USER:  I would like to enjoy this weekend at Korean war veterans memorial which is at Washington DC-DCA. So, can you help me with booking from AZ-PHX?

ASSISTANT: Sure, please share me your travel dates?

USER: Sure, my travelling dates are 03/20 and 03/22.

ASSISTANT: Do you have any specification?

USER: I need a connecting flight.

ASSISTANT: We could not found any flight on your details.

USER: That's ok.

ASSISTANT: Thank you.

USER: Thank you for the response.