You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Joshua Harris.

ASSISTANT: How can I assist you at this moment?

USER: I need to travel SEA and MSP, can you please reserve flight ticket?

ASSISTANT: Sure, I am here to help you. Could you please provide your journey dates?

USER: My travelling dates are May,19 and May,21.

ASSISTANT: Do you have any connection limit?

USER: I need a single connection for my journey.

ASSISTANT: May I know your specific depart and arrival timings?

USER: I need to depart in the evening.

ASSISTANT: Do you have any other specifications for this trip?

USER: No other specifications required.

ASSISTANT: Joshua Harris, there are no flight services are available on this route with your preferences.

USER: Oh! Sad to hear that. Anyway, I will find another alternative to complete my journey.

ASSISTANT: Thank you for contacting us.

USER: Thank you for the information.