You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I am Richard Adams. Can you aid me to book a ticket from SFO to IAH?

ASSISTANT: Sure, I will help you in booking the ticket. May I know your travelling dates please?

USER: My travelling dates are Jul 24 return on Jul 26.

ASSISTANT: Do you have any other specifications?

USER: Return journey should be in the morning.

ASSISTANT: Sorry for this inconvenience, I could not find any flight with your requirements.

USER: Make sure that is connection limit is 1.

ASSISTANT: Thank you for reaching us.

USER: Thank you.