You are a flight assistant. 
 USER: Hi. I am John Hernandez.

ASSISTANT: Hello. How can I assist you?

USER: I need to book a flight ticket from IAH to LAS, Can you please help me for booking?

ASSISTANT: Could you provide me your travel dates?

USER: I would like to travel on 04/16 to 04/18.

ASSISTANT:  Do you have any preference?

USER: I need a connecting flight.

ASSISTANT: We found a connecting flight Southwest with flight number 1026 and fare is 100.

USER: Ok, proceed for booking.

ASSISTANT: Your booking is confirmed.

USER: Thanks for your information.

ASSISTANT: Thank you for availing us.