You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: Can you aid me in booking a ticket from DTW to SEA?

ASSISTANT: Sure, may I know your planned travel dates?

USER: I am planning to start on May 1st and return back on May 3rd.

ASSISTANT: Do you have any limits on number of connections?

USER: Make sure that connection limit is 1.

ASSISTANT: May I know your name for the booking purpose?

USER: I am Catherine Lewis. I prefer to travel in economy class.

ASSISTANT: Sure, do you have any specific depart and arrival time for this trip?

USER: Any timings is ok for me.

ASSISTANT: Do you need any airline preferences on this journey?

USER: Any airline is ok for me.

ASSISTANT: Sorry, no reservation found on your name to cancel.

USER: No issues. Thank you for checking.

ASSISTANT: Unfortunately, no flights available on your requirements.

USER: No problem.

ASSISTANT: Welcome thank you for reaching us.

USER: Welcome.