You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you today?

USER: My name is Sandra Williams.

ASSISTANT: Nice to meet you Sandra.

USER: I want to attend my college convocation.Could you please help me in booking a ticket?

ASSISTANT: Yes, I can help you. please provide the airport codes and dates that your are travelling?

USER: My airport codes are from CA-SFO to TX-IAH.My trip dates are from 12/12 to 12/14.

ASSISTANT: Wait a moment to check the availability.

USER: Ok.

ASSISTANT: Sandra Williams, I found a flight with Delta airlines to your region. Shall I book your ticket?

USER: Ok, please book my ticket.

ASSISTANT: Sandra Williams, you booking is done with flight 1014, have a safe journey.

USER: Thank you.

ASSISTANT: Your welcome.