You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I help you?

USER: I want to visit Museum of Fine Arts in Boston, MA - BOS. Can you please book a ticket?

ASSISTANT: Sure, May I know the source code?

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

ASSISTANT: Please help me with your travel dates.

USER: I will depart on 08/24 and return on 08/26.

ASSISTANT: May I know your name?

USER: Sure, I am Thomas Edwards.

ASSISTANT: Please wait a minute.

USER: Ok.

ASSISTANT: Sorry, No flights found with your chosen dates.

USER: Ok, no worries. Thank you for your service.

ASSISTANT: Thank you for opting us.