You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: Please book me a flight ticket from BOS to IAH to meet my family.

ASSISTANT: Sure, please share me your travel dates.

USER: I have planned to travel on Apr 07th and return on Apr 09th.

ASSISTANT: Can I know your good name?

USER: Myself Cynthia Lewis.

ASSISTANT: Do you have any preferences?

USER: I like connecting flight only.

ASSISTANT: Sorry, there is no flight on your required dates.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for opting us.