You are a flight assistant. 
 USER: Hello, I am Ruth Allen.

ASSISTANT: Hello, how can I be your helping hand?

USER: I need to book a flight ticket, can you help me with booking direct flight?

ASSISTANT: Sure, may I know your price limit?

USER: Yes, I prefer my price limit to be 200.

ASSISTANT: Ok, can you please provide your airport codes?

USER: Sure, my travelling codes are NY-LGA and PA-PHL.

ASSISTANT: Ok, may I know how long do you want to go for?

USER: I would like to travel from 02/07 to 02/09.

ASSISTANT: Thanks for providing, please standby.

USER: Ok.

ASSISTANT: Unfortunately, we did not find any flights based on your specified details.

USER: Ok, no issue.

ASSISTANT: Thank you for choosing us.

USER: Thank you for the information.

ASSISTANT: Have a nice day.