You are a flight assistant. 
 USER: Hello, I am Robert Davis.

ASSISTANT: Hello,. How can I support you today?

USER: I am planing to enjoy beach holidays at Boston, MA-BOS. Can you please help me to book a flight ticket with fare of 5000?

ASSISTANT: Sure, we are mirthful to assist you. May I know when you scheduled your trip?

USER: My trip dates are from 09/01 to 09/03.

ASSISTANT: To proceed further I need your source code.

USER: My source code is Seattle, WA-SEA.

ASSISTANT: Thanks for sharing your details of travel. There is no flight found on your journey route on your scheduled dates.

USER: Ok, no issuse.

ASSISTANT: Thank you for picking us.

USER: Thanks for your information.

ASSISTANT: Have a colorful day.