You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: I have planned to go for Death Valley Adventure in Boston, MA - BOS. Can you please book a ticket on 04/03?

ASSISTANT: Sure, may I know your return date?

USER: I should return on 04/05.

ASSISTANT: Please provide me your source airport code.

USER: Minneapolis & St. Paul, MN - MSP is my source airport.

ASSISTANT: May I know your name please?

USER: Brandon Smith is my name.

ASSISTANT: Please wait for a moment.

USER: OK.

ASSISTANT: Sorry, no flights found with your given details. Thanks for choosing us.

USER: Ok, It's not a problem. Thanks for your response.