You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I am looking for a flight from PHL to DCA, can you help me in booking?

ASSISTANT: Sure, can you give me your trip dates?

USER: Sure, my planned travel dates are Oct 28 and Oct 30.

ASSISTANT: Do you need any connections?

USER: Yes, please look for a connecting flight as I need a break in between my journey.

ASSISTANT: Are there any other preferences?

USER: No, thank you for asking.

ASSISTANT: May I know your name?

USER: Sure, myself Stephen Martin.

ASSISTANT: Sorry, there is no flight found with your details.

USER: That's ok, no problem. Thank you for the information.

ASSISTANT: Thank you for reaching us.