You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER:  I am Ruth Clark. I need a connecting flight from Dallas & Fort Worth, can you help me?

ASSISTANT: Sure, may I know the dates of your trip?

USER: OK, my travel dates are 11/28 and 11/30 respectively.

ASSISTANT: Ok, can you please help me with airport codes?

USER: Yes, my airport origin code is DFW and destination airport code is BOS.

ASSISTANT: Ok, please be on hold for  a minute.

USER: Ok, will wait.

ASSISTANT: Sorry too inform you, there are no flights found in the dates you have provided.

USER: Ok, now I don't have any important work to hurry will plan next day. Anyways thank you for assisting me.

ASSISTANT: You are welcome. Thank you for choosing us.