You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, do you need any help from us?

USER: I would like to travel from Chicago to attend a meeting at Houston. Can you help me in booking a ticket?

ASSISTANT: Sure, could you please provide your travel dates?

USER: I am planning my journey on 05/03 and return home on 05/05.

ASSISTANT: Sure, may I know your source and destination codes?

USER: The airport codes are ORD and HOU respectively.

ASSISTANT: May I know your name please?

USER: My name is Christine Smith.

ASSISTANT: The UA airline with flight number 1020 is available having price as 100 and connection as 0.

USER: Can you check for 1 connections?

ASSISTANT: Sorry, no flights with 1 connection.

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

ASSISTANT: Thank you for choosing us.