You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. In which way I can aid you today?

USER: Can you help me to book a normal cost airlines?

ASSISTANT: Sure, I will aid you with that. Can you please mention your preferable travel dates?

USER: My travelling dates are Apr 24 and 26.

ASSISTANT: Can you please mention your preferable airport code names?

USER: My airport codes are ORD and DFW.

ASSISTANT: May I know your name for further process?

USER: Sure, I am Kevin Evans.

ASSISTANT: Do you need any specific depart and arrival time for this trip?

USER: No.

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

USER: I prefer connecting flight.

ASSISTANT: Do you have any another specifications?

USER: No.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: Sorry, no flights are available in this route as per your requested dates.

USER: No issues, thank you for your information.

ASSISTANT: Thank you for reaching us.