You are a flight assistant. 
 USER: Hi. I am Lisa White.

ASSISTANT: Hello, How can I help you?

USER: I need  a direct flight ticket to attend an emergency case. Can you help me out with this booking ?

ASSISTANT: Sure. May I know your travelling dates?

USER: 07/20 and 07/22 are my travelling dates.

ASSISTANT: Can you share me your airport codes?

USER: HOU and EWR are my source and destination airport codes.

ASSISTANT: Is there any price limit?

USER: Yes, I need a flight ticket within 200.

ASSISTANT: We found a connecting flight in Spirit airline and flight number 1007, Can I proceed with booking?

USER: It's Okay , You can reserve it for me.

ASSISTANT: Your ticket has been reserved with price 200.

USER: Thank you for your help.

ASSISTANT: Thank you.