You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you today?

USER: I want to book a flight ticket from SEA to SFO. Can you help me?

ASSISTANT: Sure, let me know your travelling dates.

USER: Nov 21st and 23rd are my travelling dates.

ASSISTANT: Do you want connecting flight?

USER: I need a connecting flight.

ASSISTANT: Do you have any other requirements?

USER: No.

ASSISTANT: May I know your name please?

USER: Jeffery Mitchell here.

ASSISTANT: We found a Frontier airline, flight number: 1015, price: 100 with one connection.

USER: You can reserve it. Thank you for your help.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you.

ASSISTANT: Thank you for choosing us.