You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I am Catherine Perez. As my hobby is gardening, I want to collect different varieties of plants by attending flower festival.Can you book a flight ticket to Oakland, OAK?

ASSISTANT: Sure, I am ravish to help you.

USER: Thank you.

ASSISTANT: Can I know, when you are planning to start your journey?

USER: I want to start my journey on 07/22.

ASSISTANT: Do you have any requirements?

USER: I need a halt in between my journey.

ASSISTANT: May I know, from where you want to board?

USER: Washington, IAD is my nearest point, I want to board from here.

ASSISTANT: Help me with your return date of journey to proceed further.

USER: After completion of my trip, I will return back on 07/24.

ASSISTANT: Please, wait for a while.

USER: Sure.

ASSISTANT: Thank you for your time. There is a flight available with fare 300 and a lay by of Frontier airline. Shall I proceed to confirm?

USER: Do not proceed, I can afford only 200.

ASSISTANT: Ok.

USER: Thank you.

ASSISTANT: Thank you for reaching us.