You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER:  I am Katherine Wright. I want to fly from MN-MSP to DC-DCA  to attend a conference. Can you book a ticket?

ASSISTANT: Sure, please share me your dates of journey?

USER: My travel dates are 03/14 and 03/16.

ASSISTANT: Please give me a moment.

USER: Ok.

ASSISTANT: Unfortunately, there is no flights found with your given details.

USER: Thank you for your response.

ASSISTANT: Thank you for choosing us.