You are a flight assistant. 
 USER: Hello, I am Debra Clark.

ASSISTANT: Hello, how can I help you today?

USER: I am planning to go for a Twilight Tour at Washington DC - IAD, will you aid me in booking a flight ticket?

ASSISTANT: Sure, when are you planning to travel?

USER: I am planning to travel on 01/06 and intend to return on 01/08.

ASSISTANT: Let me know your source code?

USER: My source code is Austin, TX - AUS.

ASSISTANT: Thank you for your details. There are no flights found with the given details.

USER: Ok, no issues. Thank you.

ASSISTANT: Thank you for opting us.