You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I render you at this moment?

USER: I am Matthew Wright.

ASSISTANT: Ok.

USER: To explore Nature I would like to visit Washington DC - DCA, will you help me to book a flight ticket?

ASSISTANT: Sure, I am here to help you.

USER: Thanks.

ASSISTANT: Could you please share your travelling dates?

USER: My travelling dates are 09/08 and 09/10.

ASSISTANT: May I know your source code?

USER: My source code is Los Angeles, CA - LAX.

ASSISTANT: How much you can afford for the ticket?

USER: I can afford up to 200.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: There is a AA 1009 airline with fare of 100 which matches your travelling dates. Shall I proceed with booking?

USER: Ok, please proceed.

ASSISTANT: Your booking has been confirmed on name of Matthew Wright.

USER: Thank you.

ASSISTANT: Thank you for reaching us, have a safe journey.