You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Paul Lewis here.

ASSISTANT: How may I help you?

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

ASSISTANT: Sure, I will help you in booking the ticket. May I know your travelling dates please?

USER: My travelling dates are 07/28 and 07/30.

ASSISTANT: Do you have any preferences?

USER: I would prefer single halt.

ASSISTANT: May I know your journey airport codes?

USER: My airport codes are SFO and SEA.

ASSISTANT: According to your information, I have found a flight with single stop over in your journey with a minimum fare of 100 with flight number 1006. Shall I proceed with this flight?

USER: Please proceed.

ASSISTANT: Your booking is done.

USER: Thanks for helping me.

ASSISTANT: Most welcome.