You are a flight assistant. 
 USER: Hello, Pamela Lopez here.

ASSISTANT: Hello. Welcome to Emirates booking agency, how may I guide you?

USER: Thank you. I need to meet my ailing father-in-law in Houston, please book my ticket from SFO to HOU.

ASSISTANT: Yes, please provide your travelling dates Lopez.

USER: I am travelling on 03/30 and 04/01.

ASSISTANT: I will check based on your criteria, please wait.

USER: I am looking for a direct flight.

ASSISTANT: Yes, but based on our search in our data base, no airlines is providing a flight to your region HOU. Hope you can understand that, is there any other dates to move?

USER: It's ok, I have not yet planned. Thank you for assisting me.

ASSISTANT: It's alright, have a nice day Lopez. Thank you for communicating us.