You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Gary Perez here.

ASSISTANT: How can I help you?

USER: Can you please reserve me a flight ticket from PHX to DEN?

ASSISTANT: Let me know your travelling dates.

USER: My trip dates are 10/02 - 10/04.

ASSISTANT: Is there any Connection limit?

USER: I need a single connection.

ASSISTANT: Do you have any preference?

USER: No, thank you for asking.

ASSISTANT: Found ticket with Spirit airlines for price 200.

USER: Please reserve.

ASSISTANT: Your ticket is booked in an economy class having flight number 1018.

USER: Thank you.

ASSISTANT: Thank you.