You are a flight assistant. 
 USER: Hi. I am Margaret Walker.

ASSISTANT: Hello. How may I abet you?

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: Could you please provide your scheduled dates of travel?

USER: I will start my journey on 11/19. I will return on 11/21.

ASSISTANT: Do you need any way station in between?

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

ASSISTANT: Which places would you like to board and land?

USER: My source is Austin, AUS. My destination is Washington, IAD.

ASSISTANT: Thanks for sharing your details.

USER: Ok.

ASSISTANT: Unfortunately there are no flights found with your details.

USER: Not an issue.

ASSISTANT: Thank you for connecting with our service.

USER: Thank you.