You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Mary Jackson here.

ASSISTANT: How can I assist you?

USER: I am looking for a flight from DTW to DFW, can you please help me in booking?

ASSISTANT: Sure, I will help you for booking. Can you please provide me your travelling dates?

USER: My trip dates are from 11/11 till 11/13.

ASSISTANT: Ok, give me a moment.

USER: Ensure that connection should be 1.

ASSISTANT: Sorry. There is no flight found for your requirement.

USER: It's ok, thank you for checking.

ASSISTANT: Welcome. Thank you for choosing us.