You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Cynthia King.

ASSISTANT: How can I assist you?

USER: I want to book a flight ticket to meet my friend at Dallas & Forth Worth DFW. Can you help me with booking a direct flight?

ASSISTANT: Ok, may I know your travelling dates?

USER: Travelling dates are 01/12 and 01/14.

ASSISTANT: Can you please mention your Source airport code?

USER: My source airport code is Boston BOS.

ASSISTANT: Sorry, no flights found on your route.

USER: Ok, no issues. Thank you.

ASSISTANT: Thank you for reaching us.