You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: I want a help in booking the flight ticket, can you please help me out? My name is Gregory Rodriguez.

ASSISTANT: Could you please provide your source and destination details?

USER: It is from PHL to OAK.

ASSISTANT: Could you please provide your travelling dates?

USER: The dates are from 02/06 to 02/08. Connection should be 1.

ASSISTANT: Sorry, there is no flight available at your request. Thank you for reaching us.

USER: That's fine, thank you for your help.

ASSISTANT: You are welcome.