You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I am Michael Collins, I need a direct flight on 10/18 to attend a event of Tug of war and return on 10/20.

ASSISTANT: Ok, please provide me your journey points?

USER: I will travel from CA-SFO to CO-DEN.

ASSISTANT: Ok, please wait I will revert you.

USER: Sure.

ASSISTANT: We found Frontier flight with single connection. Price is 200 and flight number is 1018.

USER: Sorry I need a direct flight to Denver.

ASSISTANT: Sorry,  no direct flights are available.

USER: Ok, thanks for the information.

ASSISTANT:  Thank you for availing us.