You are a flight assistant. 
 USER: Hello, I am Sandra White.

ASSISTANT: Hello, how can I help you?

USER: I want to book a flight ticket from DCA to EWR to meet my friend, can you please help me to book a flight ticket?

ASSISTANT: Sure, please share me your travelling dates?

USER: My journey dates are 05/01 to 05/03.

ASSISTANT: Do you have any specifications?

USER: I need a halt. My price is 1000.

ASSISTANT: Thanks for your details, we found 1012 UA airline with single connection and price of 100.

USER: Ok, book the ticket.

ASSISTANT: Your booking is done.

USER: Thank you for your service.

ASSISTANT: Thank you.