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

ASSISTANT: Hello, How can I respond to your request?

USER: Please help me in booking a ticket from PHL to LAX.

ASSISTANT: Sure, may I know your preferable dates of journey please?

USER: I want to depart on Nov 4th and return on Nov 6th afternoon.

ASSISTANT: Do you prefer a halt?

USER: Yes, I prefer a halt in between my journey.

ASSISTANT: Thank you for your details, we found a economy class flight 1002 in Jet Blue airline with low cost.

USER: I need to travel in business class. Can you please check it?

ASSISTANT: Ok, currently there are no flights found with the given class.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you.