You are a flight assistant. 
 USER: Hello, David Adams here.

ASSISTANT: Hello, how may I assist you today?

USER: Can you please help me in booking my flight ticket from JFK to LAS for my sister's wedding.

ASSISTANT: Sure, can you please share your journey dates?

USER: My planned trip dates are 23 to 25 June.

ASSISTANT: DO you have any specifications?

USER: I need a connecting flight within the fare of 1000.

ASSISTANT: We found connecting flight 1011 in Frontier airline with fare of 100. Shall I proceed to book?

USER: Ok, please proceed.

ASSISTANT: Your flight ticket has been booked.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.