You are a flight assistant. 
 USER: Hello,. I am Robert Thomas.

ASSISTANT: Hello, how can I serve you now?

USER: I am planning to attend a storytelling festival at Houston, so can you book a ticket with a direct flight?

ASSISTANT: Sure, I will help you to book a flight.

USER: Thank you.

ASSISTANT: May I know your airport codes?

USER: I am heading to Houston, IAH from San Francisco, SFO.

ASSISTANT: Do you want any connection in between your journey?

USER: No, I need a direct flight.

ASSISTANT: Please share me your planned journey dates?

USER: My planned travel dates are 04/23 and 04/25.

ASSISTANT: May I know your budget for flight ticket?

USER: I can afford upto 200.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: Thank you for waiting, I found a connecting flight 1026 of airline UA and fare is 100.

USER: Do not proceed with the booking.

ASSISTANT: Ok.

USER: Thank you for the information.

ASSISTANT: Thank you for reaching us.