You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: I am planning to visit National Gallery of Arts at IAD, can you help me with booking?

ASSISTANT: Sure, can I have your departure date and arrival date?

USER: My depart date is Apr 08 and arrival date is Apr 10.

ASSISTANT: Do you have any other requirements?

USER: I need a connecting flight.

ASSISTANT: Can you please share me your boarding point?

USER: My boarding point is PHX.

ASSISTANT: We are glad to inform you that we have found a flight with an airline Delta of flight 1004 in an economy class with single connection. Shall I book it for you?

USER: Please proceed.

ASSISTANT: To book a ticket, may I know your name?

USER: I am Melissa Adams.

ASSISTANT: Your flight ticket has been confirmed.

USER: Thank you.

ASSISTANT: Thank you for choosing us.