You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: Can you please make a reservation in economy class?

ASSISTANT: Sure, may I know your name please?

USER: My name is Stephanie  Martinez.

ASSISTANT: Can you please help me with your travelling dates?

USER: My journey dates are on Apr 28th and 30th.

ASSISTANT: Kindly mention your airport codes?

USER: My airport codes are, JFK to HOU.

ASSISTANT: Do you have any other specifications?

USER: I prefer a flight with single connection.

ASSISTANT: Unfortunately there is no flight found with your given information.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for choosing us.