You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you today?

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

ASSISTANT: Sure, please tell me your travel dates.

USER: My travelling dates are 03/21 and 03/23.

ASSISTANT: Please share your destination airport code.

USER: My destination airport code is LAS.

ASSISTANT: Please may I know your name?

USER: My name is Jason Thomas.

ASSISTANT: There is a flight-1015 of UA airlines for you in your route, shall I book?

USER: Yes, proceed.

ASSISTANT: Your ticket is booked.

USER: Thank you for helping me.

ASSISTANT: Thank you reaching us.