You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. What can I do for you today?

USER: I am planning to enjoy my holiday trip with my friend at DFW, can you help me with booking a connecting flight?

ASSISTANT: Sure, provide your travelling dates.

USER: My travelling dates are Feb 12 and Feb 14.

ASSISTANT: Ok, can you please tell me your airline preference?

USER: I would like to prefer normal-cost airline.

ASSISTANT: Ok, kindly mention your source airport code.

USER: My source airport code is BOS.

ASSISTANT: Ok, do you have any other requirements?

USER: No.

ASSISTANT: May I know your good name please?

USER: I am Christine Jones.

ASSISTANT: No flights found on your requested dates.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for reaching us.