You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I am planning to book a flight on Apr 26th to meet my cousin on her Birthday, so please aid me in booking a flight to Houston.

ASSISTANT: Sure, I will help you. Can you please share me your travelling airport codes?

USER: Sure, my airport codes are SFO - HOU.

ASSISTANT: Ok, please share me your arrival date.

USER: I intend to arrive on 28th of the same month.

ASSISTANT: Ok, please provide me your name.

USER: Sure, my name is Rachel Turner.

ASSISTANT: Ok, do you have any connection limit?

USER: I prefer a connected flight.

ASSISTANT: Sorry, no flights are available on your route.

USER: No worries, thank you.

ASSISTANT: Welcome, have a nice day.