You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: I need to attend seminar at New York, so can you please help me with flight ticket booking from IAH to EWR locations?

ASSISTANT: Sure, I will help you. May I know your planned journey dates?

USER: Thank you and my planned journey dates are July 21st and I will return on July 23rd.

ASSISTANT: Which airline would you prefer for your journey?

USER: I can afford more fare for my ticket, so search for a normal cost flight.

ASSISTANT: Let me know your connection limit.

USER: I need a single connection limit.

ASSISTANT: Do you have any other requirements?

USER: No.

ASSISTANT: Your good name please?

USER: My name is Richard Turner.

ASSISTANT: Thank you for sharing the details, there were no flights available that matches your preferences.

USER: No problem, I can prefer any other source to reach my location. Thank you for your help.

ASSISTANT: Thank you for availing us.

USER: Welcome.