You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you today?

USER: Can you book a connecting flight to Washington for my vacation?

ASSISTANT: Sure, I am happy to help you with that. Can I know your travelling dates?

USER: My travelling dates for journey are 06/22 to 06/24.

ASSISTANT: Ok, may I know your exact airport codes?

USER: My price limit is less than 5000. My airport codes for boarding the flight are OAK to DCA.

ASSISTANT: The southwest airlines are providing a flight having a connection limit 1. Can I proceed?

USER: Sure, you can book the flight ticket.

ASSISTANT: Ok. Can I know your name?

USER: Anna Smith here.

ASSISTANT: Yes, your ticket is successfully done with the flight number 1001.

USER: Thank you.

ASSISTANT: Thank you for consulting us.