You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I am planning to book a ticket from JFK to DCA to attend seminar, can you help me in booking?

ASSISTANT: Sure, may I know your name please?

USER: My name is Debra Robinson.

ASSISTANT: Now share your travel dates please?

USER: I am departing on May 27 and return on May 29.

ASSISTANT: May I know your departure and arrival time please?

USER: I am ok with any time.

ASSISTANT: Do you have any other preferences?

USER: I prefer a normal-cost airline with a connecting flight.

ASSISTANT: Please wait.

USER: Sure.

ASSISTANT: Sorry there no flights available with your flight details.

USER: No issue, thank you.

ASSISTANT: Thank you.