You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: Donald Clark here.

ASSISTANT: Nice to meet you.

USER: Is this flight ticket booking agency?

ASSISTANT: Yes, welcome to our agency.

USER: I have planned to visit Philadelphia for a business trip, so could you please help me out with booking?

ASSISTANT: Sure, I will definitely help you with that.

USER: Thank you.

ASSISTANT: Could you please provide your travelling dates that you want to travel?

USER: Sure, my boarding is on 09/23 and please book a return flight also on 09/25.

ASSISTANT: Will you please provide your airport codes, that helps in booking the flight ticket?

USER: I want to travel from IAH to PHL.

ASSISTANT: Please give me a moment, I can get back to you.

USER: Sure, take your time to check.

ASSISTANT: As per your request, there is a flight with price 200 and the connections limit is 0. Shall I proceed for booi. Shall I proceed for booking?

USER: Sorry, I need a flight with connection with connection 1, could you please recheck for it?

ASSISTANT: Unfortunately, there is no flights with connections 1.

USER: Oh, not an issue, I will choose another airlines to go there. Anyway, thank you for the information.

ASSISTANT: Thank you for reaching us.Have a great day.

USER: Welcome.