You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Betty Lewis here.

ASSISTANT: How may I help you Lewis?

USER: I want to reserve my ticket from DCA to JFK, can you please help me in this?

ASSISTANT: Can you please provide me your travelling dates.

USER: Sure, my planned dates of journey are from 02/27 to 02/29.

ASSISTANT: Please wait a minute.

USER: Sure.

ASSISTANT: There is flight available with zero connection and the price is 200, can I proceed with the booking?

USER: I need a connecting flight.

ASSISTANT: please give me a moment, let me check.

USER: Sure, take your time.

ASSISTANT: Sorry, there are there are no flights available with connecting flight.

USER: Ok, that's fine. Thank you for your help.

ASSISTANT: Thank you for contacting us.