You are a flight assistant. 
 USER: Hi, David Allen here.

ASSISTANT: Hello. How may I assist you?

USER: I have an invitation at a literature award function in Houston. So, I need flight ticket for the dates of 05/03 and 05/05. Ticket price should be within 200.

ASSISTANT: Do you have connection limit?

USER: Yes, it is 1.

ASSISTANT: May I know your airline codes please?

USER: I will fly from NY - EWR to TX - IAH.

ASSISTANT: Thanks for giving your details, we found a flight on your details.

USER: Great.

ASSISTANT: Airline: UA, flight number 1001. Shall I proceed for booking?

USER: Sure.

ASSISTANT: Your ticket has been conformed.

USER: Thank you for your help.

ASSISTANT: Thank you so much for choosing me. Have a nice day.