You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: Patrick Garcia here. I would like to book a ticket from MSP to DEN.

ASSISTANT: Sure, I will help you in booking your flight ticket. Please let me know your travel dates.

USER: My Travel dates are May 03 and May 05.

ASSISTANT: Ok, do you have any preferences?

USER: Yes, I would like to board a single connection flight with return in the morning.

ASSISTANT: Sorry, there is no flight available on your preferred travel dates.

USER: No issue, thank you for the help.