You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Patrick Roberts here.

ASSISTANT: Patrick Roberts, how may I render you?

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

ASSISTANT: Sure, please provide your itinerary dates.

USER: My travelling dates are 06/23 and 06/25.

ASSISTANT: May I know your genesis and terminus airport codes?

USER: My airport codes are DEN and DEN.

ASSISTANT: Please give me a moment.

USER: Ok, I will wait.

ASSISTANT: Frontier airlines with flight 1010 is available.

USER: Please proceed for booking the flight ticket.

ASSISTANT: Your ticket is confirmed.

USER: Thanks for helping me.

ASSISTANT: Thank you for choosing us.