You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I would like to go from DCA to PHL, can you please help me to book a ticket with the name of Jennifer Adams?

ASSISTANT: Ok, may I know your trip dates please?

USER: My preferable dates are from 07/31 and 08/02.

ASSISTANT: Ok, wait.

USER: Ok.

ASSISTANT: Thanks for waiting there is no flights found on your details. Thanks for choosing us, Have a good day.

USER: Ok, no problem. Thank you.