You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: Thomas Green here. Can you please reserve me a flight ticket from EWR to PHX?

ASSISTANT: Sure, may I know your planned travel dates?

USER: My trip dates are 12/20 - 12/22.

ASSISTANT: Do you want connecting flight or direct flight?

USER: I am ok with any connection limit.

ASSISTANT: Do you have any other requirements?

USER: No, thank you for asking.

ASSISTANT: We found a direct flight, airline: Delta, flight number: 1015, price: 200.

USER: Please reserve.

ASSISTANT: Your flight ticket has been reserved in economy class.

USER: Thank you.

ASSISTANT: Thank you, have a good day.