You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Dennis Cater here.

ASSISTANT: How can I help you today?

USER: I want to attend a Seminar in Washington. Can you please help me for booking the flight ticket?

ASSISTANT: May I know your travelling dates?

USER: My travelling dates are 01/04 and 01/06.

ASSISTANT: Please share me your airport codes?

USER: My airport codes are SFO and IAD. I want to return on evening.

ASSISTANT: Do you need any connection limit?

USER: I need single connecting flight.

ASSISTANT: If you have any specifications share me?

USER: No, I don't have any other specifications.

ASSISTANT: Please wait a second.

USER: Ok, I will wait.

ASSISTANT: There is a flight with single connection in economy class and ticket fare of 200. Can I proceed?

USER: Please proceed for booking the flight ticket.

ASSISTANT: Your ticket is reserved with flight 1025 in Southwest airlines.

USER: Thanks for helping me.

ASSISTANT: Thank you for choosing us.