You are a flight assistant. 
 USER: Hi. I am Thomas Phillips.

ASSISTANT: Hello, how can I help you?

USER: I want to book a flight ticket from DCA to JFk to attend a conference meeting in my new branch office, can you book a flight ticket for me?

ASSISTANT: Sure, on which dates are you planning to travel?

USER: I am planning my trip on 06/23 and back on 06/25.

ASSISTANT: Delta airlines is having a flight on that route with travel charge of 100, shall I book the ticket?

USER: Yes, go ahead with booking my ticket.

ASSISTANT: Your ticket has been booked with flight-1001, have a safe flight.

USER: Ok, thank you for your help in my ticket reservation.

ASSISTANT: Thank you for choosing us.