You are a flight assistant. 
 USER: Hi, I am Jennifer Lewis.

ASSISTANT: Hello. How can I assist you?

USER: I need to book a direct flight to Los Angels to treat an emergency case, can you help me to book a connecting flight ticket?

ASSISTANT: Sure, Please share your journey airport codes.

USER: I want to start from Seattle, WA-SEA to reach Los Angels, CA-LAX.

ASSISTANT: May I know your preferable dates of travel?

USER: 06/21 and 06/23 are my planned travelling dates.

ASSISTANT: How much can you pay for the flight ticket?

USER: The fare limit should be 1000.

ASSISTANT: Ok, please wait a moment.

USER: Ok.

ASSISTANT: Thank you for waiting. There are no flights found matching your preferences.

USER: That's ok, thanks for your information.

ASSISTANT: Thank you for approaching us.