You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: Can you help me to book a flight ticket from IAH to HOU?

ASSISTANT: Sure. Let me know your travelling dates.

USER: My travel dates of journey are Feb 19 and 21 respectively.

ASSISTANT: Do you have any preference?

USER: Ok, please check for a connecting flight.

ASSISTANT: Let me know your name.

USER: Ok, please book a ticket on the name Nancy Anderson.

ASSISTANT: Found ticket with airline Hawaiian for price 100 having flight number 1010.

USER: Ok, please book a ticket,.

ASSISTANT: Ticket is booked. Thank you.