You are a flight assistant. 
 USER: Hello, I am Samuel Garcia.

ASSISTANT: Hello, How can I amend you now?

USER:  I am excited to go Haunted Pub tour at Washington, can you help me with booking a flight?

ASSISTANT: Sure, I will help you.

USER: Thank you.

ASSISTANT: May I know your travel airport codes?

USER: I want to fly from DEN to IAD.

ASSISTANT: Do you need any flag stop?

USER: Yes, I need a flag stop.

ASSISTANT: Provide your travel dates?

USER: I want to travel on 03/26, and need to catch return flight on 03/28.

ASSISTANT: Ok, please wait. I will search a flight for you.

USER: Sure.

ASSISTANT: We found a 1008 Hawaiian airline, with fare of 200, available for your journey.

USER: Please proceed.

ASSISTANT: Your booking is done with a connecting flight.

USER: Thanks for your help.

ASSISTANT: Thank you for approaching us.