You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Amy Brown.

ASSISTANT: Hello, How can I assist you?

USER: I wish to go to New York, EWR to visit The Metropolitan museum. So, please assist me in booking a flight ticket with fare 200.

ASSISTANT: Sure, May I know the source code?

USER: Las Vegas, LAS is my take off airport code.

ASSISTANT: Please help me with your travel dates.

USER: My planned journey dates are 10/31 and 11/02.

ASSISTANT: Please wait a minute.

USER: Sure.

ASSISTANT: There is no flight with your respective dates of travel.

USER: It's ok.

ASSISTANT: Thank you for reaching us.

USER: Thank you.