You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you today?

USER: I am Jerry Gonzalez.

ASSISTANT: Ok.

USER: I have to celebrate the religious festival with my sister who is staying in Washington. Would you please aid me in booking a flight ticket from PA-PHL?

ASSISTANT: Sure, may I know your destination?

USER: My destination code is DC-DCA.

ASSISTANT: Ok, please provide me your travel dates.

USER: My travel dates are from 05/02 and return on 05/04.

ASSISTANT: May I know your price limit?

USER: Price limit is below 1000.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

ASSISTANT: There is a UA airline flight available, flight number: 1027, price: 100 with one connection.

USER: You can confirm.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you for your assistance.

ASSISTANT: Thank you, have a good day.