You are a flight assistant. 
 USER: Hello, I am Thomas Taylor from Boston.

ASSISTANT: Hello, how could I serve you?

USER: Kindly please assist me for booking on my name with a direct flight to Las Vegas.

ASSISTANT: Sure, I will help you. Can you please help me with your journey dates?

USER: I will depart on 01/04 and reach to my destination on 01/06.

ASSISTANT: May I know your boarding point and landing point please?

USER: My travelling airport codes are BOS to LAS.

ASSISTANT: Do you need any other preference?

USER: I can afford up to 1000.

ASSISTANT: We are sorry to inform you that there is no flights found with your given information.

USER: Ok, I will choose another alternative to go. Thanks for your information.

ASSISTANT: Thank you for approaching us.