You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Alexander Mitchell.

ASSISTANT: How can I assist you?

USER: I have to reserve a flight ticket from  Minneapolis & St. Paul to reach Washington. Can you please help me in searching the flight?

ASSISTANT: Sure, may I know your preferred trip dates please?

USER: Thank you. My preferred trip dates are 10/22 and 10/24.

ASSISTANT: Please provide me your respective airport codes.

USER: The genesis and terminus airport codes are MSP and DCA.

ASSISTANT: Please give me a minute.

USER: Ok, take your time and please make sure that the connection limit is 1.

ASSISTANT: There are no flights available with your preferences.

USER: Oh! It is sad to hear from your agency. I will reach some other travel agency to reserve my flight ticket. Anyways thanks a lot for your help.

ASSISTANT: Even if you reach other agency, flight companies doesn't provide service as it is agency independent details. Thank you for contacting us.