You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Emily White.

ASSISTANT: How may I assist you?

USER: I need your help in booking me a flight ticket to HOU to submit my documents in my office, could you please help me?

ASSISTANT: Sure, may I know your source code please?

USER: My source code is BOS.

ASSISTANT: Could you tell me your travelling dates?

USER: Sure, my travelling dates are from 04/14 to 04/16.

ASSISTANT: Ok, please wait. Sorry, no flights have been found on your details.

USER: It's ok, thank you for checking and providing me the information.

ASSISTANT: Thank you for approaching us.Have a nice day.