You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Sarah Smith here.

ASSISTANT: How can I serve you Sarah?

USER: Planning to visit Boston for a small trip, as these are few last days of mine left in USA, going back to India, can you please help me while booking a ticket from DCA to BOS?

ASSISTANT: Sounds great, let me know travel dates also.

USER: Sure, my travelling dates will be from 04/03 to 04/05.

ASSISTANT: Flight-1025 with UA airlines is suitable for your requirements, shall I book it?

USER: Yes, proceed with the booking.

ASSISTANT: Your booking is done. Thanks for connecting.

USER: Most welcome.

ASSISTANT: Have a nice day.