You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you?

USER: I am Helen Nelson. I am planning to travel from SEA to PHL.

ASSISTANT: Sure, could you please share your travelling dates?

USER: My date of travelling is on 06/11 to 06/13.

ASSISTANT: Flight-1003 of Delta airlines is available for you, shall I proceed?

USER: Proceed for booking.

ASSISTANT: Ok, your booking is done.

USER: Thank you.

ASSISTANT: Welcome.