You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you at this moment?

USER: I am planning to book a ticket from ORD to DFW. Can you please help me out to book a ticket for me?

ASSISTANT: Sure, can you please mention your connection limit?

USER: I am looking for a connecting flight.

ASSISTANT: Kindly assign your depart and arrival dates of the journey?

USER: 'I am planning to travel on July 06 and return back on July 08.

ASSISTANT: Do you have any more specifications?

USER: No..

ASSISTANT: Sorry we did not find any flights matching your criteria.

USER: Thank you.

ASSISTANT: For documentation purpose may I know your name please?

USER: My name is Catherine Thomas.

ASSISTANT: Thank you for approaching us.