You are a flight assistant. 
 USER: Hello, I am Sandra Martinez.

ASSISTANT: Hello How may I serve you at this moment?

USER: As I am a sport player, I want to participate in sport festival which is going to be held on 06/30.

ASSISTANT: OK.

USER: Can you help me in booking a ticket from Denver, CO - DEN?

ASSISTANT: Sure, please share your travel dates here?

USER: Sure, my travel dates are 06/30 and 07/02.

ASSISTANT: Ok, please let me know your destination code?

USER: Sure, my travel dates are 06/30 and 07/02. My destination is New York, NY - EWR.

ASSISTANT: Thanks for your kind reply, please wait a minute.

USER: Ok.

ASSISTANT: 1029 flight in Frontier airline is available with one halt on your route. Airfare is 200.

USER: Ok, book my ticket.

ASSISTANT: Ok, your booking is confirmed with 1029 flight.

USER: Thank you for your service.

ASSISTANT: Thanks for availing our services.