You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: Can you help me to book a afternoon flight from LAS?

ASSISTANT: Sure, when are you planning to start and return on?

USER: Please book a flight on Jan 24 and 26.

ASSISTANT: Where you want to travel?

USER: Please book a connecting flight to LGA.

ASSISTANT:  Are there any more preferences that you want to avail?

USER: No.

ASSISTANT: May I know your name?

USER: My name is Brian Harris.

ASSISTANT: There is a flight-1028 in economy class, is it fine for you?

USER: Proceed with booking.

ASSISTANT: Your booking is done on Southwest airlines. Thanks for reaching us.

USER: Thank you.