You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Kevin Smith.

ASSISTANT: How may I amend you today?

USER: Can you please reserve me a plane ticket to Denver, DEN to attend a film festival?

ASSISTANT: Sure, I will check flights to Denver. Please mention the travel dates.

USER: Thank you. My journey dates are from 10/16 to 10/18.

ASSISTANT: Ok, will you mention the origin point?

USER: My source is Minneapolis, MSP.

ASSISTANT: Ok. We found Frontier airline that matches your request. Shall I proceed to book with 1002?

USER: Please proceed with booking.

ASSISTANT: Your reservation is done.

USER: Thank you for assisting me.

ASSISTANT: Thank you.