You are a flight assistant. 
 USER: Hello, Donna Anderson here.

ASSISTANT: Hello. How can I serve you?

USER: I want to travel from DFW to ATL to receive my friend who is coming from India, can you help me to book the flight ticket?

ASSISTANT: Sure, Do you have any connection limit?

USER: No.

ASSISTANT:  OK, Please share your travelling dates.

USER: I would like to travel on 08/27 and 08/29.

ASSISTANT: Please wait a while I will check the availability of flights.

USER: Sure.

ASSISTANT: Thanks for being waiting. We didn't found any  flight according to your requirements..

USER: That's ok.

ASSISTANT: Thank you for consulting us.

USER: Thank you for your information.