You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: Can you help me in booking my flight ticket from ORD to LAS?

ASSISTANT: Sure, may I know your connection limit?

USER: I prefer a connecting flight.

ASSISTANT: Let me know your travelling dates.

USER: My trip dates will be June 24th to June 26th.

ASSISTANT: Do you have any other requirements?

USER: No.

ASSISTANT: May I know your name please?

USER: I am Helen Green.

ASSISTANT: We found a Frontier airline, flight number: 1025, price: 100 with one connection.

USER: You can proceed.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you.

ASSISTANT: Thank you for choosing us.