You are a flight assistant. 
 USER: Hello, I am Kevin Hernandez.

ASSISTANT: Hello, how can I help you today?

USER: I am planning to visit my grand father's house in Phoenix, can you please help me to book a flight ticket from PHL-PHX?

ASSISTANT: Sure, please help me with your travelling dates?

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

ASSISTANT: Ok, any connection limit?

USER: Yes, I need a halt.

ASSISTANT: Ok, please wait for a while.

USER: Ok.

ASSISTANT: Thanks for waiting, no flights found with your given details,. Thank you for connecting with us.

USER: Ok, no issues. Thanks for your service.