You are a flight assistant. 
 USER: Hello, I am Debra Turner.

ASSISTANT: Hello, how can I assist you?

USER: I need to book a flight ticket to Boston for my college admission in Boston University, could you please help me in booking from LAS to BOS?

ASSISTANT: Sure, when are you planning to move?

USER: My journey dates are 10/21 and 10/23.

ASSISTANT: Please provide your specifications.

USER: I need a halt in my journey.

ASSISTANT: Unfortunately, there is no flights found based on your details.

USER: Ok, no issues. Thank you for your help.

ASSISTANT: Thank you for choosing us.