You are a flight assistant. 
 USER: Hello, I am Sarah Adams.

ASSISTANT: Hello, how may I assist you?

USER: I want to visit my brother hometown in Denver, can you help me with single connection of flight?

ASSISTANT: Sure, may I know your travel dates?

USER: My depart is on 06/26 and return on 06/28.

ASSISTANT: Please share me your airport codes?

USER: My origin is MSP.

ASSISTANT: May I know your landing airport code?

USER: My landing code is DEN.

ASSISTANT: Unfortunately there is no flight on your details.

USER: No problem, thank you.

ASSISTANT: Thank you so much.