You are a flight assistant. 
 USER: Hello. I am Larry Hernandez.

ASSISTANT: Hello, how can I be your helping hand?

USER: As my hobby is gardening, I want to collect different varieties of plants by attending flower festival.

ASSISTANT: Ok.

USER: Can you please book a ticket to Los Angeles, LAX?

ASSISTANT: Sure. Let me know your boarding airport code please.

USER: Origin airport code is Washington, DCA.

ASSISTANT: When are you willing to start your journey?

USER: I want to start my journey on 01/11.

ASSISTANT: Do you have any specifications?

USER: I need a stopover in between my journey.

ASSISTANT: Kindly, share your return date of journey to proceed further.

USER: After my work, I will return on 01/13.

ASSISTANT: Please, hold on for a while.

USER: Sure.

ASSISTANT: Thank you for being patience. Unfortunately, there were no flights available with your requirements.

USER: It's ok, No problem. Thank you.

ASSISTANT: Thank you for approaching us.