You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you today?

USER: I need to book a flight ticket from PHL to OAK, can you please help me for booking?

ASSISTANT: Sure, may I know on which dates you are willing to travel?

USER: I would like to travel on 03/12 to return on 03/14.

ASSISTANT: For further proceeding, may I know your good name?

USER: Rachel Thomas here.

ASSISTANT: May I know your connection limit?

USER: I need a connecting flight.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: Sorry to inform you that, there is no flight found as per your travelling dates.

USER: Ok, no problem. Thanks for your information.

ASSISTANT: Thank you for reaching us.