You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I'm Sandra Perez.

ASSISTANT: How can I give some guidance right now from my side?

USER: My convocation is going to held in Houston, can you help me in booking a ticket from SFO to IAH?

ASSISTANT: Sure, I will definitely search a flight for your journey and I will book the ticket to reach your location. I need your airborne and recur travel dates for better searching of flights, can you please provide that one?

USER: My itinerary dates are 11/30 and 12/02.

ASSISTANT: Let me check with your details in our booking site and I will let you know about the flight details if there is any flight obtained on your details.

USER: Ok, please check for a direct flight.

ASSISTANT: Thank you for waiting. Based on your travel details, I have found a flight with a single connection with a fare of 100 from Delta airlines. If you are ok with this, please inform me to book the flight.

USER: I have already mention for a direct flight.

ASSISTANT: Ok, sorry for the trouble. I am in a hurry state in searching a flight for the customers. I am unable to find a flight for you to reserve a flight ticket based on your connection due to sold out of tickets in direct flights for your location.

USER: Ok, no problem. Thank you for your information.

ASSISTANT: Perez, next time we can serve you better with your help if you can reach us at any time. Thank you for your valuable time in spending with our agency.