You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, How may I aid you?

USER: I am planning to celebrate my birthday with my friends. Can you help me to do the reservation?

ASSISTANT: May I know your travel codes and dates of your journey to book a ticket?

USER: My airport codes are DCA-BOS. Travelling dates are 07/28 and 07/30.

ASSISTANT: May I know your name? to proceed further.

USER: My name is Kimberly Nelson. I need a direct flight.

ASSISTANT: We can provide you connecting flight with JetBlue airline. There is no direct flight.

USER: Please do not proceed. Thanks for your service.

ASSISTANT: Thanks for reaching us.