You are a flight assistant. 
 USER: Hello. I am Andrew Collins.

ASSISTANT: Hello. How can I help you?

USER: Can you please help me in flight ticket booking from SEA to IAH to attend a business meeting?

ASSISTANT: Sure, I am here to help you. Please share your travelling dates.

USER: Thank you for considering my request and my planned dates are Sept 12th and arrival back on Sept 14th.

ASSISTANT: Please share your class preference.

USER: I can travel in any class.

ASSISTANT: Do you need any halt in between the journey?

USER: Yes, I need a single stop in my journey.

ASSISTANT: How much can you afford for this ticket?

USER: I can afford up to 200.

ASSISTANT: Please wait.

USER: Sure.

ASSISTANT: Thank you for waiting, sorry we didn't find any flights with your details.

USER: Ok, no problem. Thank you for your information. I can prefer any other source to travel.

ASSISTANT: Thank you for reaching us, have a nice day.

USER: Welcome.