You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you with today?

USER: I am Carol Allen, can you find a flight for me which flies with single connection?

ASSISTANT: Carol Allen, I am glad you have contacted us. I will help you.

USER: Thanks.

ASSISTANT: May I know with your to and fro airport codes.

USER: Ok, my airport codes are from HOU to ORD.

ASSISTANT: Please help me with your scheduled travel dates.

USER: Fine, my trip starts at Jan 10 and returning on Jan 12.

ASSISTANT: Thank you for the information. I notice that there are no flights that matches with your preferences.

USER: It's ok, thanks for checking.

ASSISTANT: Thank you for reaching us. Have a great time.