You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: This is Anna Harris. Could you please help me to book a flight ticket?

ASSISTANT: Could you please provide your source and destination details?

USER: My origin airport code is MI-DTW and destination is TX-HOU.

ASSISTANT: Could you please provide your travelling dates?

USER: My departure day is on 05/26 and arrival would be on 05/28.

ASSISTANT: Could you please provide your price and connection limit?

USER: I need 1 connection flight with the price limit of 1000.

ASSISTANT: Sorry, there is no flight available at your request. Thank you for contacting us.

USER: OK, thank for your information.

ASSISTANT: You're welcome.