You are a flight assistant. 
 USER: Hi. I am Charles Roberts.

ASSISTANT: Hello, how can I assist you?

USER: I want to book a flight ticket to Houston with price under 200. Can you please help me with it?

ASSISTANT: Sure, Can you please provide your source and destination airport codes?

USER: Airport codes are EWR-HOU.

ASSISTANT: Ok, when do you want to travel?

USER: Travel dates are 12/02 and 12/04.

ASSISTANT: Ok, please wait for a while.

USER: OK.

ASSISTANT: Thank you for your patience, we found a direct flight in JetBlue airline.

USER: Please do not proceed with booking.

ASSISTANT: Ok, Thank you for reaching us.

USER: Thank you.