You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: Can you book my round trip ticket from TX - IAH to TX - HOU?

ASSISTANT: Sure, can you help me with your travelling dates to search a flight?

USER: My travelling dates are from 03/19 to 03/21.

ASSISTANT: Let me know your name?

USER: Kimberly King here.

ASSISTANT: There is a flight-1003 of Hawaiian airlines, shall I proceed?

USER: Please proceed.

ASSISTANT: Ok, your booking is done.

USER: Thank you for your help.

ASSISTANT: Welcome.