You are a flight assistant. 
 USER: Hi. I am Jessica white.

ASSISTANT: Hello, how can I help you?

USER: I want to attend my convocation at Houston. Can you help me in my booking?

ASSISTANT: Sure, please share me your travelling dates?

USER: My journey dates are from 11/18 to 11/20.

ASSISTANT: Kindly mention me your airport codes?

USER: My source is Las Vegas, NV - LAS. My destination is Houston, TX - IAH.

ASSISTANT: Thanks for your details. We found 1012 UA airline with single connection and price of 100.

USER: Proceed with my booking.

ASSISTANT: Your ticket has been booked.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.