You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: I would like to travel from DFW to ORD, can you help me to book a flight ticket?

ASSISTANT: Sure, we are glad to help you. When are you planning to make your journey?

USER: My journey dates are Nov 25 and Nov 27.

ASSISTANT: May I know your connection limit?

USER: My connection limit is 1.

ASSISTANT: Do you have specific airline to travel?

USER: I would like to prefer normal cost airline.

ASSISTANT: Is there specific depart and arrival timings for this trip?

USER: I would like to return in the evening time.

ASSISTANT: Would you please let me know your good name?

USER: My name is Scott Martin.

ASSISTANT: Thanks for proving details, we are unable to provide flights on your requirements at this moment. Sorry for the inconvenience.

USER: No problem, thank you for the checking.

ASSISTANT: Thank you for opting us.