You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

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

ASSISTANT: Sure, I am here to help you. May I know your planned travel dates?

USER: Sure, my planned travel dates are Oct 24 and Oct 26.

ASSISTANT: Do you have any time preference for return and depart journey?

USER: I need a afternoon flight to start my journey.

ASSISTANT: Do you have any connection limit preference?

USER: Please look for a connecting flight that's it.

ASSISTANT: Please help me with your name to proceed further.

USER: Myself Emma Baker.

ASSISTANT: Emma Baker, regret to inform that there is no flight available for the given dates.

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

ASSISTANT: Thank you for reaching us.