You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you?

USER: I want to book a ticket from IAD to PHL. Could you book a ticket?

ASSISTANT: Sure, can you share your trip dates?

USER: Depart date is Nov, 5 and return is Nov, 7.

ASSISTANT: Do you have any specifications?

USER: I need a connecting flight.

ASSISTANT: Do you have any specifications? Give me a minute.

USER: Ok.

ASSISTANT: There is a connecting flight with number 1019 in airline Frontier, the fare is 100 in business class. Can I book it?

USER: Please book a flight.

ASSISTANT: May I know your name?

USER: I am Angela Collins.

ASSISTANT: Your ticket is reserved.

USER: Thanks.

ASSISTANT: Thank you for opting us.