You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I am Amanda Johnson. Can you help me in booking the ticket from BOS to LAX?

ASSISTANT: Can I have your trip dates?

USER: My planning dates are from 03/23 to 03/25.

ASSISTANT: There is no flight for you according to your request.

USER: That's ok. Thank you.

ASSISTANT: Thanks for contacting us.