You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Can you aid me to book my ticket from IAH to LGA?

ASSISTANT: Sure, I am here to help you. Could you please share your travelling dates?

USER: My travel dates are Dec 2 and Dec 04 respectively.

ASSISTANT: May I know your name?

USER: Joshua Hill here.

ASSISTANT: Do you have any connection limit?

USER: I need a single connecting flight.

ASSISTANT: Is there any specifications?

USER: My depart should be in the evening.

ASSISTANT: Here, there is a flight with 1 connection in Spirit airlines and price is 100. Shall I book?

USER: Please book the ticket.

ASSISTANT: Ok, your ticket has been booked with the flight 1004.

USER: Thank you.

ASSISTANT: Thank you for choosing us.