You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I aid you?

USER: Can you please help me in booking from DCA to SEA?

ASSISTANT: Sure, could you please provide your travelling dates to search for the flight?

USER: My travelling dates are from Apr 6 to Apr 8.

ASSISTANT: Are you fine with single connection?

USER: I nee a flight with maximum connection of 1.

ASSISTANT: Can I know your name?

USER: My name is Joseph Hill.

ASSISTANT: Do you have any requirements?

USER: I prefer big branded airlines.

ASSISTANT: There is a connecting flight 1016 of Delta airlines, can I proceed?

USER: Ok, you can proceed.

ASSISTANT: Your booking is done.

USER: Thank you.

ASSISTANT: Welcome.