You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I aid you today?

USER: I am Amy Anderson here, I would like to travel from HOU to LAS, can you please help me to book a ticket?

ASSISTANT: On which dates do you want to travel?

USER: Sure, my dates of journey is from 02/25 to 02/27. Please make sure that the price limit is 200.

ASSISTANT: Ok, I will check.

USER: Sure.

ASSISTANT: I found a flight 1009 of Delta airlines with price 100 for you.

USER: Ok, please proceed with this ticket booking.

ASSISTANT: Your ticket is confirmed successfully.

USER: Thank you for your help in reserving my ticket.

ASSISTANT: Thank you for choosing us.