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

ASSISTANT: Hello, How can I assist you today?

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

ASSISTANT: Sure, We are rapturous to help you.

USER: Thank you.

ASSISTANT: On what dates you prefer to travel?

USER: I want to travel on 07/10, and need to catch return flight on 07/12.

ASSISTANT: Can I know your trip locations, please?

USER: I need to leave from my nearest airport PHL to reach DCA.

ASSISTANT: How much you can spend for airfare?

USER: Make sure to check a flight with in a price limit of 200.

ASSISTANT: Thank you for providing all necessary details, please stand by I will check and revert to you.

USER: Sure.

ASSISTANT: Thanks for waiting, we are pleased to inform you that we have found a Hawaiian airline, flight number-1002, connections-1 and price limit is 100.

USER: Please proceed.

ASSISTANT: Your booking has been done.

USER: Thanks for the help.

ASSISTANT: Thank you for opting us.