You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: I am Christopher Clark, want to travel from IAH to OAK. Please help me in booking my ticket.

ASSISTANT: Sure, can I know your travel dates?

USER: Sure, my travelling dates are from 01/05 to 01/07.

ASSISTANT: Please give me a minute, let me check the details.

USER: Sure.

ASSISTANT: The flight 1004 of Hawaiian airlines is available on your requested dates with a price of 100. Shall I proceed?

USER: Yes, please proceed with the booking.

ASSISTANT: Sure, your ticket has been booked successfully.

USER: Thank you for your help.

ASSISTANT: You are welcome.