You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I provide assistance to you today?

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

ASSISTANT: Sure, I would be happy to help you.

USER: Thank you.

ASSISTANT: Could you let me know when you are willing to travel?

USER: I am planning to go on 10/28 and intend to back on 10/30.

ASSISTANT: Do you need any halt in between your journey?

USER: Yes, I need a halt in between my journey.

ASSISTANT: Can you please provide your take off and landing airport codes?

USER: Sure, I will depart from LGA airport and land on DCA airport.

ASSISTANT: Kindly mention your price limit?

USER: I am looking for a cheaper flight with price under 200.

ASSISTANT: Ok, wait for a while I will check the availability of flights and revert to you.

USER: Sure, take your time.

ASSISTANT:  Thanks for your precious time. We found UA airline fare of 200. Shall I proceed for booking with single stop over flight?

USER: That's perfect. Please proceed.

ASSISTANT: To proceed for further booking I need your name?

USER: Sure, I am Daniel Mitchell.

ASSISTANT: Thanks for the name.

USER: Thank you for helping me.

ASSISTANT: Your ticket has been confirmed with airline number 1005.

USER: Thanks.

ASSISTANT: Thank you for choosing us. Have a safe journey!.