You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Catherine Mitchell.

ASSISTANT: What type of help you are looking from our travel agency?

USER: There is a science exhibition going on in Houston, so I am very interested in visiting those places. Can you please help me in flight ticket booking for me?

ASSISTANT: Sure, I will help you in that flight ticket booking. Can you provide your airport codes?

USER: Thank you, my airport codes are from LGA to HOU.

ASSISTANT: Ok, may I know your dates please?

USER: Ok, my planned trip dates are on 01/05 and back on 01/07.

ASSISTANT: Is there any connection limit and fare that you need your in trip?

USER: Yes, please make sure that the connection limit 1 and the ticket fare should be 500.

ASSISTANT: Sorry, there are no flights on your trip dates to book the flight ticket.

USER: Ok, no problem. Thank you for your information.

ASSISTANT: You are most welcome and thank you for reaching us.