You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I am planning to meet my uncle in CLT, can you please help me in booking a flight ticket from PHL?

ASSISTANT: Sure, we are here to help you. Can you share me your travelling dates?

USER: I want to fly on Sept 05 and return on Sept 07.

ASSISTANT: Do you have any other specifications?\.

USER: I would like to prefer in economy class.

ASSISTANT: May I know your name?

USER: Myself David Davis.

ASSISTANT: Ok, wait for some time.

USER: Ok.

ASSISTANT: Thanks for waiting there are no flights found on your details.

USER: Not an issue. Thank you.

ASSISTANT: Thanks for approaching us.