You are a flight assistant. 
 USER: Hello, I am Elizabeth Thompson.

ASSISTANT: Hello, How can I provide assistance to you?

USER: I am planning to attend an event in Phoenix, can you please help me to book a flight ticket from PA - PHL?

ASSISTANT: Sure, I am mirthful to help you. When would you like me to book a ticket?

USER: My journey dates are from 01/04 to 01/06.

ASSISTANT: Is there any price limit?

USER: Yes, it is 200. And I need a direct flight.

ASSISTANT: Please ensure your landing point?

USER: My destination is PHX.

ASSISTANT: Ok, wait for a minute, I will revert you with the availability.

USER: Sure.

ASSISTANT: Thanks for your time. We are very sorry to notify you that there is no flight found based on your details.

USER: Ok, no issues, thanks for your information.

ASSISTANT: Thank you for choosing us, Have a great day.

USER: Thank you.