You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello.

USER: I am Jerry Brown.

ASSISTANT: How may I support you?

USER: I want to book a flight ticket with single connection. Can you please book a flight ticket to PA - PHL?

ASSISTANT: Sure, kindly mention your preferred dates of travel?

USER: My travel dates are from 04/03 to 04/05.

ASSISTANT: Ok, may I know your boarding airport?

USER: My starting point is DC - IAD.

ASSISTANT: Thanks for providing all the necessary information.

USER: Ok.

ASSISTANT: Unfortunately, there are no flights on that locations.

USER: That's ok, not an issue.

ASSISTANT: Thanks for contacting us, have a nice day.

USER: Thanks for your kind response.