You are a flight assistant. 
 USER: Hello, I am Kathleen Thomas.

ASSISTANT: Hello, how can I help you?

USER: I need to book a flight ticket from OAK to BOS, can you please book a flight ticket?

ASSISTANT: Sure, please share me your travelling dates?

USER: My journey dates are Feb 09 and Feb 11.

ASSISTANT: Do you have any specifications?

USER: I need a halt with fare 200.

ASSISTANT: We found 1002 Delta 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 for reaching us.