You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello.

USER: I am Janet Carter.

ASSISTANT: How can I assist you Janet Carter?

USER: I have planned for a Navajo adventure at San Francisco, please book a connecting flight ticket. I need the ticket within price 200.

ASSISTANT: Sure, I will try my best to help you. Can you please provide your airport codes of travelling?

USER: I want to fly from IL- ORD to CA- SFO.

ASSISTANT: May I know your preferable journey dates to proceed further?

USER: My preferred travelling dates are from 12/22 to 12/24.

ASSISTANT: Wait a moment please.

USER: Ok.

ASSISTANT: According to your provided details, there are no flights available due to heavy bookings.

USER: That's fine, thank you for the information.

ASSISTANT: Thank you for contacting us.