You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I oblige you?

USER: I want to book a ticket in economy class so, can you please help me with it?

ASSISTANT: Sure, may I know your travelling dates?

USER: My travelling dates are Sept 01 and Sept 03.

ASSISTANT: Can you please share your airport codes?

USER: My airport codes are HOU and IAH.

ASSISTANT: May I know your name?

USER: My name is Jonathan Anderson.

ASSISTANT: Do you have any connection limit?

USER:       I need a connecting flight.

ASSISTANT: Do you have any specifications?

USER: No.

ASSISTANT: Sorry, there are no flights found on your trip dates.

USER: That's ok, thank you for the response.

ASSISTANT: Thank you for reaching us.