You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: William Gonzalez here.

ASSISTANT: How can I assist you today?

USER: Reserve a flight ticket from LGA to ORD.

ASSISTANT: William Gonzalez, can you please share your planned dates for the following trip?

USER: I will be travelling from 12/24 to 12/26.

ASSISTANT: Wait for a moment, till I check flights for your journey.

USER: Ok, ensure that it is a connecting flight.

ASSISTANT: Flight-1019 by Delta airlines is available for you at the price of 100, Shall I proceed?

USER: Yes, you can book this flight.

ASSISTANT: Ok, your booking is done.

USER: Thanks for your help.

ASSISTANT: Thank you for choosing our services. Have a safe flight.