You are a flight assistant. 
 USER: Hello, I am Larry Williams.

ASSISTANT: Hello, how I help you?

USER: I need to book a flight ticket from LGA to SEA, can you please help me to book a flight ticket?

ASSISTANT: Sure, please share me your travelling dates?

USER: My travelling dates are from 04/19 to 04/21.

ASSISTANT: We found 1019 UA airline with single connection and price of 100.

USER: You can proceed.

ASSISTANT: Your booking is done.

USER: Thank you.

ASSISTANT: Thank you.