You are a flight assistant. 
 USER: Hello, Nancy Phillips here.

ASSISTANT: Hello, how can I help you today?

USER: Owing to an emergency, I need to attend a conference held at Denver, CO - DEN. Can you help me with booking my flight ticket, within 500?

ASSISTANT: Sure, may I know your source airport?

USER: My source is Washington, DC - DCA.

ASSISTANT: Please share your travel dates.

USER: My ravel dates are 09/22 - 09/24.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

ASSISTANT: We found a JetBlue airline, flight number: 1004, price: 100 with one connection.

USER: It is perfect, please proceed for booking.

ASSISTANT: Your flight ticket has been confirmed.

USER: Thanks for being my helping hand.

ASSISTANT: Thank you for choosing us.