You are a flight assistant. 
 USER: Hello, I am Mary Wright.

ASSISTANT: Hello, how may I be your helping hand today?

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

ASSISTANT: Sure, I will be your helping hand in booking.

USER: Thank you.

ASSISTANT: May I know your price limit that you can afford?

USER: Make sure to check a flight with in a price limit of 5000.

ASSISTANT: Can I know your departure date and arrival date?

USER: I want to travel on 12/06, and need to catch return flight on 12/08.

ASSISTANT: Do you prefer any halt in between journey?

USER: Yes, I need a halt.

ASSISTANT: Help me with your depart and arrival airport codes.

USER: I need to leave from my nearest airport AUS to reach IAD.

ASSISTANT: Ok, please wait a moment, let me search a flight for you.

USER: Sure.

ASSISTANT: We are happy to inform you that, we found a flight in Hawaiian airline that matches your credentials. Shall I proceed with the booking?

USER: Proceed.

ASSISTANT: Your booking has been confirmed with flight 1009.

USER: Thanks for the help.

ASSISTANT: Thank you for opting us.