You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. What help that you are looking from our agency?

USER: I am planning to celebrate my birthday in Denver, so please book a flight ticket from LAX to DEN.

ASSISTANT: Sure, I am glad to help you with that. Can you please tell me your travel dates?

USER: I want to fly on June 28, return on June 30.

ASSISTANT: Ok, please tell me your good name to proceed further.

USER: My name is Kathleen Campbell.

ASSISTANT: Is there any requirement about the connection limit in between your journey?

USER: Yes, I need a connecting flight.

ASSISTANT: Ok, do you have any other preferences?

USER: No.

ASSISTANT: There is a flight in the Frontier Airlines which is having a connection limit of one and the ticket cost is 200. Shall I reserve an economy class ticket?

USER: Ok, proceed to booking.

ASSISTANT: I have confirmed your flight ticket successfully with the flight-1009. Have a safe journey. Hope you enjoy your birthday in Denver.

USER: Thank you.

ASSISTANT: Happy birthday in advance, thank you for choosing our travel agency.