You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I am Joseph Clark.

ASSISTANT: Nice to meet you.

USER: I want to book a ticket from IAD to DCA. Could you help me?

ASSISTANT: Sure, I will help you with that. May I know your planned travel dates please?

USER: My preferable dates are from 01/31 to 02/02.

ASSISTANT: Ok, please be on hold, I will get back to you with your flight Details.

USER: Ok.

ASSISTANT: Joseph Clark, there is a connecting flight in UA airline with a fare of 100. Shall I proceed with booking?

USER: Yes, you can proceed.

ASSISTANT: Your booking has been done with flight 1027.

USER: Thank you for helping me.

ASSISTANT: Thank you for choosing our agency, have a nice day.