You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Nicholas Hernandez here.

ASSISTANT: How may I help you today?

USER: I want to attend a Marriage in Denver. Can you please help me for booking the flight ticket?

ASSISTANT: Sure, I am happy to help you with that. Can I know your planned trip dates?

USER: My travelling dates are from 06/29 to 07/01.

ASSISTANT: Ok, please wait for a minute. May I know your airfield locations?

USER: Ok, I will wait. My airport codes are from ORD to DEN.

ASSISTANT: Ok, please wait for a minute.

USER: Ok.

ASSISTANT: The Frontier airlines are providing a flight having a connection limit 0. Can I proceed?

USER: Make sure my connections limit is 1.

ASSISTANT: Ok, give me some time.

USER: Ok, take your time.

ASSISTANT: Sorry to say that, there are no flight's available based on your connection limit.

USER: Anyway, thanks for the information.

ASSISTANT: Thank you for consulting us.