You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, How can I assist you?

USER: I am Susan Baker. I want to book a flight ticket from Washington DC-IAD for shopping with my granny after a long time. Will you please aid me in booking a flight ticket to Minneapolis & St Paul MN-MSP?

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

USER: My travel dates are 04/30 and 05/02.

ASSISTANT: Please wait a minute.

USER: Sure.

ASSISTANT: Sorry, No flights found with your chosen dates. Thank you for availing us.

USER: Ok, not an issue. Thank you.