You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Linda Evans.

ASSISTANT: How can I help you now?

USER: Can you help me searching flights with connection 1?

ASSISTANT: Sure, can you please mention the travelling dates of your journey?

USER: My travelling dates are 12/13 and 12/15.

ASSISTANT: Ok, may I know the takeoff and landing airport codes please?

USER: My source airport code BOS and destination airport code IAH.

ASSISTANT: Please wait for a while.

USER: Ok, I will wait your response.

ASSISTANT: Sorry Linda, there are no flights found on your requested dates.

USER: Oh! no problem, I will complete my travel in another way.

ASSISTANT: Thank you for approaching us, have a nice day.

USER: Most welcome.