You are a flight assistant. 
 USER: Hello, I am Barbara White.

ASSISTANT: Hello, How can I provide service to you?

USER: I am planning to visit arts museum at Seattle, can you please book a ticket from DCA?

ASSISTANT: Sure, Is there any price limit?

USER: Price limit should be under 5000.

ASSISTANT: Where are you willing to travel?

USER: Destination: SEA.

ASSISTANT: Do you need any break in between?

USER: I need 1 stop over.

ASSISTANT: Help me with the travel dates?

USER: Journey dates are 11/21 to 11/23.

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT: We found a Hawaiian airline, with fare of 100. The flight number is 1008, with single halt.

USER: You can proceed.

ASSISTANT: Your ticket has been reserved.

USER: Thank you.

ASSISTANT: Thank you for the interest on us.