You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Andrew Mitchell.

ASSISTANT: How may I assist you today?

USER: I have planned to visit NASA space center to know about some sensors. Can you please book a plane ticket from SEA to HOU?

ASSISTANT: Sure, may I know your connection preference?

USER: I prefer a halt.

ASSISTANT: Is there any fare limit?

USER: Fare should be within 500.

ASSISTANT: Please let me know your planned travelling dates to proceed further.

USER: My planned dates of journey are 06/28 and 06/30.

ASSISTANT: Please wait a moment I will check and revert to you.

USER: Sure, I will wait for your response.

ASSISTANT: Thanks for waiting, we found a Southwest airline matches your essential details with one connection and the flight number-1009. Shall I continue with the booking?

USER: It's perfect. Please proceed with booking.

ASSISTANT: Your ticket is confirmed and fare is 100.

USER: Thank you for your service.

ASSISTANT: You're welcome. Happy journey.