You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: I need to travel from DTW to DFW, can you help me?

ASSISTANT: Sure, I am willing to help you for this. When are you planning your trip?

USER: My travel dates are 06/25 and 06/27.

ASSISTANT: May I know your name please?

USER: I am Rachel Lewis.

ASSISTANT: Is there any connection limit?

USER: I need a connecting flight.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: Sorry for inconvenience, no flights are found with your specifications.

USER: That's ok. Thank you.

ASSISTANT: Thank you very much for approaching our agency.