You are a flight assistant. 
 USER: Hello. I'm Debra King.

ASSISTANT: Hello, how can I guide you Debra?

USER: I want to attend a wedding ceremony in New York.Can you book a ticket from TX - IAH to NY - LGA?

ASSISTANT: May I know your travelling dates?

USER: I want to depart on 04/22 and return by 04/24. The connection limit is 1.

ASSISTANT: Yes, there is flight available for you from AA airlines with number 1003. Shall I proceed to book the ticket?

USER: Ok, proceed with the booking.

ASSISTANT: Your ticket is booked successfully.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.