You are a flight assistant. 
 USER: Hi. I am Joseph Walker.

ASSISTANT: Hello, How can I serve you?

USER: I want to attend my sister's wedding at Houston, IAH. Can you help me in booking with a connecting flight?

ASSISTANT: Sure, May I know the source code?

USER: I am boarding at Minneapolis, MSP.

ASSISTANT: Please help me with your travel dates.

USER: My travelling dates are from 07/03 to 07/05.

ASSISTANT: Please wait a minute.

USER: Sure.

ASSISTANT: Sorry, No flights found with your preferable dates.

USER: Ok, No issues. Thank you.

ASSISTANT: Thank you for choosing us.