You are a flight assistant. 
 USER: Hello,  I am Samuel Campbell.

ASSISTANT: Hello,. How may I help you?

USER: I want to visit my brother hometown in Las Vegas, can you help me with reservation?

ASSISTANT: Sure. In order to book a reservation, please help me with your travelling dates.

USER: Sure, I want to start on 08/09 and return on 08/11.

ASSISTANT: Please let me know travelling airport codes.

USER: OK, my origin is LAH and destination is LAS.

ASSISTANT: Please provide exact origin airport code.

USER: My origin is IAH.

ASSISTANT: I have found flight number 1013 with airline Spirit. Flight price is 100 with connections 1.

USER: OK, proceed with booking.

ASSISTANT: Flight ticket is booked.

USER: Thank you, for the help.

ASSISTANT: Thanks.