You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I serve you?

USER: I am planning to meet my sister on her birthday, can you please book me a flight ticket from DEN to JFK?

ASSISTANT: That's great, I will be helping you. May I know your travelling dates please?

USER: Sure, I want to start my journey on 10/29 and return from JFK on 10/31.

ASSISTANT: Meanwhile, may I know your name?

USER: Sure, my name is Pamela Garcia.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: Your booking is confirmed, thank you for reaching us.

USER: Ok, but make sure that the connection limit is 1.

ASSISTANT: Sorry to inform you but no flights currently available for your journey.

USER: No problem, I will find an other way to travel. Anyway thank you for checking.

ASSISTANT: Thank you for reaching our services. Have a great day.