You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: I am Brenda Clark, want to travel from IAD to LAX. Will you please help me in booking my ticket?

ASSISTANT: Sure, let me know your travel dates also.

USER: My travelling dates are from 12/19 to 12/21.

ASSISTANT: Brenda Clark, wait till I check a flight for you.

USER: Sure.

ASSISTANT: Flight 1003 is available for your requirements. Shall I proceed further.

USER: Ok, please book it.

ASSISTANT: Your booking is confirmed. Thanks for reaching us.

USER: Thank you for your help.

ASSISTANT: Have a good day.