You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello. How can I help you?

USER: I am Jack Perez and I want to make a reservation to Denver, DEN on 12/15. Can you help me with a connecting flight?

ASSISTANT: Yes, I can help you.

USER: Thank you.

ASSISTANT: Can you tell me your source airport code?

USER: My source is New York, EWR.

ASSISTANT: Ok, can I know your return date?

USER: I will catch return flight on 12/17.

ASSISTANT: Give me a moment.

USER: Sure.

ASSISTANT: I have found a flight ticket with a price of 200 and 1 connection.

USER: Ok, proceed for booking. Thanks for your kind help.

ASSISTANT: Ok, your ticket is booked. Thank you for contacting us.

USER: Thank you.