You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Jennifer Turner here.

ASSISTANT: How can I help you?

USER: I would like to book a ticket from IAH and I like to return in the afternoon from PHX. Can you help me with booking?

ASSISTANT: Let me know your travelling dates in order to book a ticket.

USER: Ok, my journey dates are from Jan 12 to 14.

ASSISTANT: Do you have any preference?

USER: I am looking for single connection.

ASSISTANT: Sorry, no flights found for your travelling dates.

USER: It's ok, thanks for checking.

ASSISTANT: Thank you.